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Jefferson County, KY Weather And Climate Synopsis

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Precipitation Report Kentucky Climate Summary GIS Estimates Almanac Precision Ag., Lawn & Garden Forecast Historical Facts




Soil Moisture Anomaly Loop



Current Spraying Conditions
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A joint service of the UK Ag Weather Center and the National Weather Service.


Updated Thursday Evening, December 9, 2021

Severe weather on the table

It has been a rather active weather pattern to start December. Through the 8th, the state has averaged 1.39 inches. Attention now turns to another round of showers and storms tomorrow and Saturday. Altogether, another half to 1.5 inches will be on the table. Coverage will start tomorrow scattered in nature. Highs will jump into the 60s across much of the area behind breezy southerly winds. Shower/storm coverage and intensity then increases tomorrow night and into Saturday morning. A line of storms is expected with damaging winds as the main threat, but tornadoes also very much possible. Heavy rain also presents a flooding threat, especially for low lying areas. Now is the time to get animals out of those spots. Bottom line, this will present an overnight threat, so please have a way to get warning (highly suggest a NOAA Weather Radio).

After a brief cool down for the latter half of the weekend, temperatures go on the uphill climb next week. Outlooks hint the warm air will hang around the area through the third full week of December. Any additional rain chances look to hold off until late workweek.

USDA's Ag Weather:National Ag. Weather Outlook, International Ag. Weather Summary , Next Weather Event?
Current Surface Map, Regional, Composite, TWC, Yesterday's Highs, Lows ,
Upper Air


Regional Hourly Observations For JEFFERSON County, Kentucky
Issued at 1100 PM EST THU FEB 22 2024
NORTH CENTRAL KENTUCKY
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
LOUISVILLE/SDF CLOUDY    52  47  83 N14       29.65S                  
LOUISVILLE/LOU CLOUDY    50  48  93 N6        29.65S                  
FORT KNOX      CLOUDY    52  48  87 N9        29.63S                  

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 1100pm EST, Thursday February 22, 2024

Across Kentucky...temperatures are near 53 degrees west, near 54 degrees central, and near 51 degrees east. Current sky conditions are mostly cloudy west, cloudy central, and cloudy east. In the west, relative humidity is near 83%, and the dew point is near 48 degrees. In the central part of the state, relative humidity is near 93%, and the dew point is near 52 degrees. In the east, relative humidity is near 96%, and the dew point is near 50 degrees. Current drying conditions are poor west, poor central, and poor east. There is patchy fog central and east. Winds are from the north at 6 mph west, where conditions are favorable for spraying. Winds are from the northwest at 12 mph with gusts at 18 mph central, where conditions are not favorable for spraying due to strong winds. Winds are variable at 5 mph east, where conditions are favorable for spraying. 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 56 degrees at Bowling Green. The lowest temperature is 47 degrees at Covington.

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.

UKAWC Radar, NWS Radar (NEW!), SPC Radar, Regional Radar, NEXRAD, LSI Heat Index
Hazardous Weather Outlook For JEFFERSON County, Kentucky
Issued at: Thu Feb 22 15:01:24 EST 2024

301 PM EST Thu Feb 22 2024 /201 PM CST Thu Feb 22 2024/

This Hazardous Weather Outlook is for Indiana, south central 
Indiana, east central Kentucky, north central Kentucky, northwest 
Kentucky and south central Kentucky.

.DAY ONE...This afternoon and tonight.

Isolated non-severe thunderstorms are expected this evening. The 
strongest storms could produce heavy rainfall, gusty winds, and small
hail.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Light wintry precipitation is possible Saturday morning. Little or 
no snow accumulation is expected. 

Heavy rain and thunderstorms are possible on Wednesday. Continue to
monitor updated forecasts for added detail.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected 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
NGM 60 Hr Forecast Meteograms: Paducah , Evansville , Bowling Green , Hopkinsville , Frankfort , Louisville , Lexington , Covington , Jackson , London, All Kentucky Hourly Model Guidance, About NGM Forecast Meteograms

Kentucky Agricultural Weather Medium-Range Outlook (Based on the MEX Model)

MEDIUM RANGE AG FORECAST:

- Click here for Graphical Ag. Weather Forecast -

SATURDAY :
Highs across the state will range from 0 West and 0 Central, to 0 East. Dewpoints will range from (% to 0/ West, (% to 0/ Central, and (% to 0/ East throughout the day. Rainfall amounts of 0 inches over (F)% of the area West, 0 inches over (F)% of the area Central, and 0 inches over (F)% of the area East should be expected. Lows Saturday will fall to 0/ West, 0/ Central, and 0/ East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and 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 and mph , respectively, West, and mph Central, and and mph East.

SATURDAY :
Highs across the state will range from 0 West and 0 Central, to 0 East. Dewpoints will range from to 0/ West, to 0/ Central, and to 0/ East throughout the day. Rainfall amounts of 0 inches over 0/ % of the area West, 0 inches over 0/ % of the area Central, and 0 inches over 0/ % of the area East should be expected. Lows Saturday will fall to 0/ West, 0/ Central, and 0/ East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and 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 and mph , respectively, West, and mph Central, and and mph East.

SATURDAY :
Highs across the state will range from 0 West and 0 Central, to 0 East. Dewpoints will range from to 0/ West, to 0/ Central, and to 0/ East throughout the day. Rainfall amounts of 0 inches over 0 % of the area West, 0 inches over 0 % of the area Central, and 0 inches over 0 % of the area East should be expected. Lows Saturday will fall to 0/ West, 0/ Central, and 0/ East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and 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 and mph , respectively, West, and mph Central, and and mph East.

SATURDAY :
Highs across the state will range from 0 West and 0 Central, to 0 East. Dewpoints will range from to 0/ West, to 0/ Central, and to 0/ East throughout the day. Rainfall amounts of inches over 0/ % of the area West, inches over 0/ % of the area Central, and inches over 0/ % of the area East should be expected. Lows Saturday will fall to 0/ West, 0/ Central, and 0/ East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and 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 and mph , respectively, West, and mph Central, and and mph East.

SATURDAY :
Highs across the state will range from 0 West and 0 Central, to 0 East. Dewpoints will range from to 0/ West, to 0/ Central, and to 0/ East throughout the day. Rainfall amounts of inches over 0 % of the area West, inches over 0 % of the area Central, and inches over 0 % of the area East should be expected. Lows Saturday will fall to 0/ West, 0/ Central, and 0/ East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and East. There will be corn growing degree days West, Central, and East. Wind speeds in the morning and afternoon will be around and mph , respectively, West, and mph Central, and and mph East.

SATURDAY :
Highs across the state will range from West and Central, to East. Dewpoints will range from to 0/ West, to 0/ Central, and to 0/ East throughout the day. Rainfall amounts of inches over 0/ % of the area West, inches over 0/ % of the area Central, and inches over 0/ % of the area East should be expected. Lows Saturday will fall to West, Central, and East. Skies throughout the day will start out and end in the West, start and end Central, and start out and end East. The maximum livestock stress category will be West, Central, and East.There will be corn growing degree days West, Central, and East. Wind speeds in the morning and afternoon will be around and mph, respectively, West, and mph Central, and and 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 
                FEB 28-MAR 3  MAR 1-MAR 7    JUN       JUN-AUG                      
                 -----------  -----------  --------  ---------
   Temperature:      Above        Above     Normal      Above                      
 Precipitation:      Above       Normal      Above      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)
6 to 10 Day , 8 to 14 Day , Text, 30-Day Outook, 90-Day Outook, 120-Day Outlook


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: NEAR NORMAL           (PDSI=   1.08)
Rainfall Needed:  0.00 inches ABOVE NORMAL


Crop Moisture (CMI) Situation:
----------------------------------------------------------------------------------------------------------

Current Short-term Crop Moisture Status: Favorable For Normal Growth And Fieldwork    (CMI=   0.56)
Change From Previous Week: DRIER      SOILS ( -0.49)

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 54 in the West to 52 in the East. Departure from normal high temperatures ranged from +3 degrees from normal in the West to +7 degrees from normal in the East. Low temperatures averaged from 27 degrees in the West to 26 degrees in the East. Departure from normal low temperature ranged from -1 degrees from normal in the West to +0 degrees from normal in the East.

Precipitation (liq. equ.) for the period totaled 0.27 inches statewide which was -0.62 inches from normal. Precipitation totals by climate division, West 0.10 inches, Central 0.24 inches, Bluegrass 0.31 inches and East 0.37 inches, which was -0.85, -0.72, -0.45 and -0.50 inches respectively from normal. By station, precipitation totals ranged from a low of 0 inches at Spindletop to a high of 0.58 inches at Berea.

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
Thursday February 22, 2024 the 53th Day of Year

---------------------------------------------------
SUN
Declination -10.000000
Distance 0.999723 AU
Rise 07:19 EST Set 18:25 EST
Transit Meridian 12:51 EST
Civil Twilight Begins 06:54 EST Ends 18:50 EST

---------------------------------------------------
Normal Max/Min Temperature for Today: 50 / 27
---------------------------------------------------


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
FEBRUARY 22ND
HISTORIC WEATHER EVENTS
...1773...
The memorable "Cold Sabbath" in New England history. Many persons froze
extremities while going to church. (David Ludlum)
...1936...
Although heat and dust prevailed in the spring and summer, early 1936
brought record cold to parts of the U.S. Sioux Center IA reported 42 inches
of snow on the ground, a state record. (20th-22nd) (The Weather Channel)
UKAWC Briefing Page

Ag Weather Center, Department of Biosystems & Agricultural Engineering, University of Kentucky