535
CXUS55 KRIW 061841
CLMP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1128 AM MST FRI MAR 06 2026
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF FEBRUARY 2026...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF FEBRUARY 2026 WILL BE
AVAILABLE APPROXIMATELY IN 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW
...LAKE YELLOWSTONE IN FEBRUARY WAS WETTER THAN NORMAL WITH RECORD
WARMTH...
AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN FEBRUARY WAS 21.2
DEGREES WHICH IS 7.7 DEGREES ABOVE NORMAL. IT WAS THE 1ST WARMEST
FEBRUARY SINCE RECORDS BEGAN IN 1998. THE WARMEST READING OF THE
MONTH WAS 45 DEGREES ON THE 5TH. THE 3RD HIGH OF 37 TIED 2000. THE
HIGH ON THE 7TH OF 47 TIED 2007. THE 28TH HIT 40 DEGREES AND BROKE
38 FROM 2010. THE COLDEST READING OF THE MONTH WAS -24 DEGREES ON
THE 20TH.
TOTAL PRECIPITATION AT LAKE YELLOWSTONE WAS 1.74 INCHES...WHICH WAS
102 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH
WAS THE 8TH-9TH WHEN 0.62 INCHES OF PRECIPITATION FELL. NO
PRECIPITATION RECORDS WERE BROKEN THIS MONTH. THE HIGHEST WIND GUST
WAS 46 MPH FROM THE WEST-NORTHWEST ON THE 25TH.
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY
2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2026
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 49 02/05/2000
LOW -38 02/24/2003
HIGHEST 45 02/05
LOWEST -24 02/20
AVG. MAXIMUM 33.2 26.1 7.1
AVG. MINIMUM 9.2 0.9 8.3
MEAN 21.2 13.5 7.7
DAYS MAX >= 90 0
DAYS MAX <= 32 11
DAYS MIN <= 32 28
DAYS MIN <= 0 4
PRECIPITATION (INCHES)
RECORD
MAXIMUM 7.56 2017
MINIMUM 0.00 2022
TOTALS 1.74 1.70 0.04 2.16
DAILY AVG. 0.06 0.06 -0.00
DAYS >= .01 12
DAYS >= .10 5
DAYS >= .50 1
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.62 02/08 TO 02/09
STORM TOTAL 0.60
DEGREE DAYS
HEATING TOTAL 1219 1442 -223
SINCE 7/1 6970 8202 -1232
COOLING TOTAL 0 0 0
SINCE 1/1 0 0 0
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 2.4
RESULTANT WIND SPEED/DIRECTION 0/190
HIGHEST WIND SPEED/DIRECTION 24/280 DATE 02/25
HIGHEST GUST SPEED/DIRECTION 46/280 DATE 02/25
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.00
NUMBER OF DAYS FAIR 28
NUMBER OF DAYS PC 0
NUMBER OF DAYS CLOUDY 0
AVERAGE RH (PERCENT) 72
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 1 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 11 SLEET 0
FOG 0 FOG W/VIS <= 1/4 MILE 0
HAZE 0
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO MARCH 2026. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 31 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 3 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 38 DEGREES
AND THE AVERAGE LOW TEMPERATURE IS 12 DEGREES. THE AVERAGE MONTHLY
PRECIPITATION IS 1.90 INCHES.
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