Jefferson County, KY Weather and Hourly Weather


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Updated Tuesday, December 10, 2019

...Wet Weather Continues Today, Light Snow Expected...

A cold front will move through the region later tonight. A secondary impulse 
behind it will bring additional rain and snow chances into the region today, 
with all snow expected by this afternoon and evening, with some minor snow 
accumulations over south central Kentucky.

Weather Forecast Across The Commonwealth Of Kentucky 





Western KY:



Central KY:



Eastern KY:







Specific and detailed farm-by-farm weather forecast information is available in your Point Ag Forecast. New County Ag Weather Page,
 Current Conditions:Kentucky,  U.S.

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Regional Hourly Observations For JEFFERSON County, Kentucky
Issued at 800 AM EST TUE DEC 10 2019
NORTH CENTRAL KENTUCKY CITY SKY/WX TMP DP RH WIND PRES REMARKS LOUISVILLE/SDF CLOUDY 32 22 66 W13G21 30.17R WCI 22 LOUISVILLE/LOU FAIR 32 18 56 W14 30.16R WCI 22 FORT KNOX MOCLDY 30 20 65 W14G23 30.16R WCI 19

KY Round-up, Current Temperatures, Dewpoint, Rh, Wind, Regional Obs., Station Model, Surface 4-Panel, NWS Louisville
Meteograms: Paducah , Evansville , Bowling Green , Hopkinsville , Frankfort , Louisville , Lexington , Covington , Jackson , London , Shelby Co. Weather , Spindletop Research Weather Station , Woodford Co. Research Weather Station , About Meteograms
Current Agriculture, Lawn & Garden Weather Conditions in Kentucky
Based on observations at 800am EST, Tuesday December 10, 2019

Across Kentucky...temperatures are near 31 degrees west, near 36 degrees central, and near 46 degrees east. Current sky conditions are fair west, cloudy central, and rain east. In the west, relative humidity is near 52%, and the dew point is near 15 degrees. In the central part of the state, relative humidity is near 73%, and the dew point is near 28 degrees. In the east, relative humidity is near 96%, and the dew point is near 45 degrees. Current drying conditions are fair west, fair central, and poor east. Tobacco stripping conditions are marginal west, marginal central, and favorable east. There is patchy fog east. Winds are from the north at 10 mph west, where conditions are favorable for spraying. The wind chill is near 22 degrees west. Winds are from the west at 8 mph central, where conditions are favorable for spraying. The wind chill is near 30 degrees central. Winds are from the west at 10 mph with gusts at 28 mph east, where conditions are not favorable for spraying due to strong winds and rain. The livestock cold stress index is in the no stress category west, no stress category central, and no stress category east. Based on current available observations, the highest temperature is 46 degrees at Jackson. The lowest temperature is 29 degrees at Owensboro and Henderson.

List of Agriculture, Lawn & Garden Weather Observations in Kentucky

Current NOWCAST not available:
Nowcasts are not issued routinely during fair weather. Only when
precipitation or other significant weather is occuring in this county will these
forecasts be issued. Currently, there is no short term forecast in effect.

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Hazardous Weather Outlook For JEFFERSON County, Kentucky
Issued at: Tue Dec 10 05:04:20 EST 2019

Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield, Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford, Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana, Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle, Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester, Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown, Brownsville, Horse Cave, Greensburg, Campbellsville, Stanford, Russellville, Bowling Green, Franklin, and Providence 504 AM EST Tue Dec 10 2019 /404 AM CST Tue Dec 10 2019/ This hazardous weather outlook is for portions of south central Indiana and Central Kentucky. .DAY ONE...Today and Tonight. No hazardous weather is expected at this time. .DAYS TWO THROUGH SEVEN...Wednesday through Monday. No hazardous weather is expected at this time. .SPOTTER INFORMATION STATEMENT... Spotter activation is not needed at this time. && More information, along with other weather, hydrological and climate information can be found, at weather.gov/louisville.
NWS Severe Weather Map , Convective Outlook

RDF forecast not available NEW NWS Experimental Weather Activity Planner: West, Central, East
NWS Experimental Point Forecasts (5 km x 5 km grid for Kentucky): West, Central, East

JEFFERSON County, Kentucky Agriculture, Lawn & Garden Weather Advisory

Updated: 310 AM EST THU NOV 12 2009

TODAY (6AM-5PM)
Max Temperature...........................61 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................29 to 34 Degrees.
Min RH (Relative Humidity).........37%.
Wind Speed....................................4 to 10 mph
Winds@3 PM..................................northeast at 10 mph
Spraying Conditions....................favorable
Sky Conditions @9 AM ...............mostly sunny.
RH < 50%........................................ for 7 hours
RH > 80%.........................................for 0 hour
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The high today (6am-5pm) in Jefferson county, is expected to be near 61 degrees. No rainfall is expected. Temperature will range from near 39 to near 60 degrees. Dewpoints will range from 29 to 34 degrees. These dewpoints will combine with today (6am-5pm)'s temperatures resulting in relative humidity minimum of 37%. Skies will be mostly sunny at 9 AM and mostly sunny at 3 PM. Wind speed will range from 4 to 10 mph during the period. Winds at 3 PM will be out of the northeast at 10 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 7 hours and greater than 80% for 0 hour

TONIGHT (6PM-5AM)
Min Temperature...........................38 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................near 34 Degrees.
Max RH (Relative Humidity)........76%.
Wind Speed....................................2 to 8 mph
Winds@3 AM..................................northeast at 3 mph
Spraying Conditions....................favorable
Sky Conditions @12 AM .............clear.
Sky Conditions @3 AM ...............clear.
RH < 50%........................................ for 1 hour
RH > 80%.........................................for 0 hour
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The low tonight (6pm-5am) in Jefferson county, is expected to be around 38 degrees. No rainfall is expected. Temperature will range from near 41 to near 53 degrees. Dewpoints will be near 34 degrees. These dewpoints will combine with tonight (6pm-5am)'s temperatures resulting in relative humidity maximum of 76%. Skies will be clear at 12 AM and clear at 3 AM. Wind speed will range from 2 to 8 mph during the period. Winds at 3 AM will be out of the northeast at 3 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 1 hour and greater than 80% for 0 hour

TOMORROW (6AM-5PM)
Max Temperature...........................64 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................34 to 42 Degrees.
Min RH (Relative Humidity).........41%.
Wind Speed....................................2 to 5 mph
Winds@3 PM..................................southeast at 3 mph
Spraying Conditions....................favorable
Sky Conditions @9 AM ...............mostly sunny.
Sky Conditions @3 PM ...............mostly sunny.
RH < 50%........................................ for 5 hours
RH > 80%.........................................for 2 hours
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The high tomorrow (6am-5pm) in Jefferson county, is expected to be near 64 degrees. No rainfall is expected. Temperature will range from near 41 to near 64 degrees. Dewpoints will range from 34 to 42 degrees. These dewpoints will combine with tomorrow (6am-5pm)'s temperatures resulting in relative humidity minimum of 41%. Skies will be mostly sunny at 9 AM and mostly sunny at 3 PM. Wind speed will range from 2 to 5 mph during the period. Winds at 3 PM will be out of the southeast at 3 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 5 hours and greater than 80% for 2 hours

TOMORROW NIGHT (6PM-5AM)
Min Temperature...........................46 degrees.
Precipitation (liq. eq. )...................0.00 inches (No rainfall).
Precipitation area .........................0% of the county expected.
Dewpoints.......................................42 to 44 Degrees.
Max RH (Relative Humidity)........89%.
Wind Speed....................................2 to 3 mph
Winds@3 AM..................................south at 2 mph
Spraying Conditions....................favorable
Sky Conditions @12 AM .............mostly clear.
Sky Conditions @3 AM ...............mostly clear.
RH < 50%........................................ for 0 hour
RH > 80%.........................................for 3 hours
No. of Hours Temp <=32 .............0
No. of Hours Temp <= 20 .............0
No. of Hours Temp <= 0 ...............0

The low tomorrow night (6pm-5am) in Jefferson county, is expected to be around 46 degrees. No rainfall is expected. Temperature will range from near 47 to near 59 degrees. Dewpoints will range from 42 to 44 degrees. These dewpoints will combine with tomorrow night (6pm-5am)'s temperatures resulting in relative humidity maximum of 89%. Skies will be mostly clear at 12 AM and mostly clear at 3 AM. Wind speed will range from 2 to 3 mph during the period. Winds at 3 AM will be out of the south at 2 mph, which is favorable spraying conditions in rain-free areas. Relative humidity will be less than 50% for 0 hour and greater than 80% for 3 hours

72 HOUR SUMMARY
The temperature is expected to be in the range from 38 degrees and 67 degrees. Dewpoints will range from 29 to 47 degrees. No measurable precipitation is expected.

Ag. Weather Forecast Parameter Maps:Spraying Conditions , Dewpoint Temperatures, Livestock Heat Stress

Extended Digital forecast not available
Current FORECAST not available TWC Forecast, NWS Maps, Fire Danger, Day 1 Precip, Day 2, 5 Day Total, Days 1-5
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Kentucky Agricultural Weather Medium-Range Outlook (Based on the MEX Model)

MEDIUM RANGE AG FORECAST:
- Click here for Graphical Ag. Weather Forecast -

THURSDAY :
Highs across the state will range from 53 West and 51 Central, to 51 East. Dewpoints will range from 23 to 31 West, 21 to 26 Central, and 20 to 24 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 10 % of the area West, 0.00-0.01 inches over 10 % of the area Central, and 0.00-0.01 inches over 10 % of the area East should be expected. Lows Thursday will fall to 26 West, 27 Central, and 26 East. Skies throughout the day will start out clear and end clear in the West, start clear and end clear Central, and start out clear and end clear East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 2 corn growing degree days West, 0 Central, and 0 East. Wind speeds in the morning and afternoon will be around 4 and 9 mph , respectively, West, 4 and 8 mph Central, and 2 and 2 mph East.
FRIDAY :
Highs across the state will range from 52 West and 52 Central, to 47 East. Dewpoints will range from 35 to 41 West, 32 to 42 Central, and30 to 41 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 20 % of the area West, 0.00-0.01 inches over 30 % of the area Central, and 0.10-0.24 inches over 80 % of the area East should be expected. Lows Friday will fall to 38 West, 39 Central, and 37 East. Skies throughout the day will start out partly cloudy and end cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 1 corn growing degree days West, 1 Central, and 0 East. Wind speeds in the morning and afternoon will be around 6 and 7 mph , respectively, West, 7 and 7 mph Central, and 3 and 3 mph East.
SATURDAY :
Highs across the state will range from 51 West and 53 Central, to 51 East. Dewpoints will range from 36 to 32 West, 37 to 33 Central, and 43 to 33 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 30 % of the area West, 0.01-0.09 inches over 60 % of the area Central, and 0.25-0.49 inches over 90 % of the area East should be expected. Lows Saturday will fall to 40 West, 41 Central, and 46 East. Skies throughout the day will start out cloudy and end partly cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 0 corn growing degree days West, 2 Central, and 0 East. Wind speeds in the morning and afternoon will be around 11 and 18 mph , respectively, West, 10 and 23 mph Central, and 4 and 13 mph East.
SUNDAY :
Highs across the state will range from 43 West and 43 Central, to 47 East. Dewpoints will range from 28 to 33 West, 28 to 29 Central, and29 to 30 East throughout the day. Rainfall amounts of 0.01-0.09 inches over 40 % of the area West, 0.01-0.09 inches over 60 % of the area Central, and 0.00-0.01 inches over 30 % of the area East should be expected. Lows Sunday will fall to 30 West, 32 Central, and 35 East. Skies throughout the day will start out partly cloudy and end cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 0 corn growing degree days West, 0 Central, and 0 East. Wind speeds in the morning and afternoon will be around 7 and 13 mph , respectively, West, 15 and 11 mph Central, and 12 and 6 mph East.
MONDAY :
Highs across the state will range from 43 West and 45 Central, to 51 East. Dewpoints will range from 31 to 30 West, 30 to 33 Central, and 32 to 39 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 70 % of the area West, 0.00-0.01 inches over 70 % of the area Central, and 0.00-0.01 inches over 70 % of the area East should be expected. Lows Monday will fall to 33 West, 33 Central, and 38 East. Skies throughout the day will start out cloudy and end cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East. There will be 0 corn growing degree days West, 0 Central, and 0 East. Wind speeds in the morning and afternoon will be around 14 and 14 mph , respectively, West, 11 and 11 mph Central, and 6 and 5 mph East.
TUESDAY :
Highs across the state will range from 44 West and 43 Central, to 46 East. Dewpoints will range from 26 to 26 West, 31 to 28 Central, and 33 to 29 East throughout the day. Rainfall amounts of 0.00-0.01 inches over 60 % of the area West, 0.00-0.01 inches over 50 % of the area Central, and 0.00-0.01 inches over 70 % of the area East should be expected. Lows Tuesday will fall to 29 West, 35 Central, and 36 East. Skies throughout the day will start out cloudy and end cloudy in the West, start cloudy and end cloudy Central, and start out cloudy and end cloudy East. The maximum livestock stress category will be no stress West, no stress Central, and no stress East.There will be 0 corn growing degree days West, 0 Central, and 0 East. Wind speeds in the morning and afternoon will be around 12 and 13 mph, respectively, West, 11 and 11 mph Central, and 5 and 10 mph East.
Raw Data: MEX(west), MEX(central), MEX(east)

* NOTE: See specific site Ag Wx Data and Summary files for further information.

Graphic Regional Ag. Weather Outlook, Tabular data for the Medium Range Outlook

Medium & Long Range Outlook For Kentucky
KENTUCKY --------------------------------------------- 6 TO 10 DAY 8 TO 14 DAY 30 DAY 90 DAY DEC 15-19 DEC 17-23 DEC DEC-FEB ----------- ----------- -------- --------- Temperature: Normal Above Above Above Precipitation: Above Above Normal Above .... Medium and long range outlooks provided by NCEP/K. Thomas Priddy
UKAWC 8 Day Forecast Maps, TWC Jet, 15-Day Jet,Trend, Max/Mins (80k)
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Precipitation Report: (liquid equivalent)
Total Precipitation and Deviation From Normal (in inches) Valid May 27, 2012 The nearest available weather station for Jefferson County is Louisville: Past 7 days Past 30 days Jan 1 - Present Station Total Dev Total Dev Total Dev --------------- ----- ------ ----- ------ ------ ------ Louisville 0.00 -1.04 4.72 +0.28 18.26 -0.66
List of Kentucky Weather Stations (1st Order & Ag. stations) Rainfall
UKAWC Regional Ag Weather Summary (Select Format): Spring , Summer , Fall

Drought Status For JEFFERSON County, Kentucky
(Based on the latest Palmer Drought Severity and Crop Moisture Indices)
CENTRAL KY CLIMATE DIVISION Hydrological Drought (PDSI) Situation: ------------------------------------------------------------------------------------ Current Long-term Hydrological Moisture Status: VERY MOIST SPELL (PDSI= 3.28) Rainfall Needed: 0.00 inches ABOVE NORMAL Crop Moisture (CMI) Situation: ---------------------------------------------------------------------------------------------------------- Current Short-term Crop Moisture Status: More Dry Weather Needed, Work Delayed (CMI= 2.43) Change From Previous Week: DRIER SOILS ( -2.45)
Note: Due to rainfall variability within each climate division, check Precip Reports/GIS Estimates and the Kentucky Climate Summary for the latest moisture information for this county.
Additional Drought Info.: UKAWC Drought Page

Kentucky Climate Summary
normal. High temperatures averaged from 56 in the West to 50 in the East. Departure from normal high temperatures ranged from +5 degrees from normal in the West to +2 degrees from normal in the East. Low temperatures averaged from 34 degrees in the West to 33 degrees in the East. Departure from normal low temperature ranged from +2 degrees from normal in the West to +7 degrees from normal in the East.
Precipitation (liq. equ.) for the period totaled 0.28 inches statewide which was -0.67 inches from normal. Precipitation totals by climate division, West 0.18 inches, Central 0.14 inches, Bluegrass 0.30 inches and East 0.44 inches, which was -0.83, -0.90, -0.56 and -0.46 inches respectively from normal. By station, precipitation totals ranged from a low of 0.02 inches at Cape Girardeau to a high of 1.88 inches at Huntington.
Kentucky Climate Summaries: Last 3 days, 7 days, 14 days, 21 days, 30 days
Yesterday's Weather Data, Kentucky Climate Analysis, Kentucky Climate in Review (2005)
GIS ESTIMATES FOR JEFFERSON COUNTY
Valid July 29, 2013
The GIS estimates are derived by ARC/INFO GIS software for a central point in the county. The estimates are calculated from from 29 weather stations in the Kentucky area. Precipitation Estimates Last 3 Last 7 Last 14 Last 30 Since Days Days Days Days Jan 1 _______________________________________________________________________________ Precip Total 0.03 1.89 2.16 5.77 28.78 Precip Deviation -0.41 0.87 0.13 1.47 1.66 Temperature Estimates Last 3 Last 7 Last 14 Last 30 Days Days Days Days _____________________________________________________________________ Temp Average 71 74 79 77 Temp Deviation -5 -2 3 1 Soil Temperature Estimates Yesterday _________________________________________ Avg 4" Sod Soil Temp 76 European Corn Borer Degree Days Accumulations Degree Days Forecasted Accumulations Total 550 610 750 1660 1740 ____________________________________________________________ 2140 5/10 5/13 5/21 6/28 7/1

Almanac Information
Tuesday December 10, 2019 the 344th Day of Year --------------------------------------------------- SUN Declination -22.960000 Distance 0.999724 AU Rise 07:44 EST Set 17:19 EST Transit Meridian 12:31 EST Civil Twilight Begins 07:15 EST Ends 17:47 EST --------------------------------------------------- Normal Max/Min Temperature for Today: 48 / 28 --------------------------------------------------- Calculations made for central point in Kentucky Time in ET -- and will vary due to location and elevation -- Priddy
Sunrise/Sunset/Moonrise/Moonset Computation (USN)
TEMPERATURE is not available
Yesterday's U.S. Highs, Lows , KY's Highs/Lows/Precip, Daily Weather Data, Hourly Weather Data
Historical Weather And Climate Facts For Today

DECEMBER 10TH HISTORIC WEATHER EVENTS ...1699... A severe ice storm hit Boston MA causing much damage to orchards. (The Weather Channel) ...1946... The temperature at New York City soared to 70 degrees. (David Ludlum) ...1949... The barometric pressure at Las Vegas NV reached a record low reading of 29.17 inches (987.8 millibars). (The Weather Channel) ...1987... A cold front brought high winds to the eastern slopes of the Northern and Central Rockies. Winds gusted to 97 mph at Mines Peak CO. In Wyoming, up to a foot of snow blanketed the Teton Village Ski Resort, northwest of Jackson. Strong chinook winds in the Central High Plains Region, gusting to 61 mph at Scottsbluff NE, warmed temperatures to near 70 degrees. (Storm Data) (The National Weather Summary) ...1988... Squalls produced heavy snow in the Lower Great Lakes Region. Totals in northeastern Ohio ranged up to 14 inches at Harpersfield, and totals in western New York State ranged up to 14 inches at Sodus. In the snowbelt of Upper Michigan, the Ontonogon area reported two feet of snow in two days. (Storm Data) (The National Weather Summary) ...1989... Heavy snow fell across the northern and central mountains of Colorado, with 24 inches reported at Steamboat Springs. Six to twelve inches of snow fell in the Denver and Boulder area delaying plane flights and snarling traffic. Heavy snow also spread across the Central Plains into the Mississippi Valley. Winner SD received 11 inches of snow, and more than ten inches of snow was reported north of Sioux City IA. (The National Weather Summary) (Storm Data)
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Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky