156
CXUS55 KRIW 011840
CLMRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1115 AM MST MON DEC 01 2025
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS FOR THE
MONTH OF NOVEMBER 2025...
...OFFICIAL CLIMATE DATA FOR THE MONTH OF NOVEMBER 2025 WILL BE
AVAILABLE IN APPROXIMATELY 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
..ROCK SPRINGS WAS WARMER AND DRIER THAN NORMAL IN NOVEMBER
THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN NOVEMBER WAS 40.1
DEGREES WHICH WAS 8.9 DEGREES ABOVE NORMAL. IT WAS THE SECOND
WARMEST NOVEMBER SINCE RECORDS BEGAN IN 1948. THE WARMEST READING
FOR THE MONTH WAS 66 DEGREES ON THE 5TH AND TIED THE 2009 RECORD. IT
ALSO TIES FOR THE HIGHEST TEMPERATURE FOR THE MONTH OF NOVEMBER. THE
2ND HIT 65 DEGREES AND BROKE THE 2020 RECORD OF 63. THE 13TH HIT 62
AND BROKE THE 1999 RECORD OF 61. THE 14TH HIGH OF 61 TIED THE 1990
AND 2016 RECORDS. THE COLDEST TEMPERATURE WAS 9 DEGREES ON THE 30TH.
PRECIPITATION FOR THE MONTH WAS 0.18 INCHES...WHICH WAS 45 PERCENT
OF NORMAL. THE WETTEST 24-HOUR PERIOD WAS ON THE 16TH-17TH WITH 0.08
INCHES. NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH. THE HIGHEST
WIND GUST WAS 53 MPH FROM THE WEST ON THE 7TH.
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER
2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 66 11/05/2009
11/04/1977
LOW -13 11/30/1979
11/27/1976
HIGHEST 66R 11/05
LOWEST 9 11/30
AVG. MAXIMUM 50.9 40.5 10.4
AVG. MINIMUM 29.2 21.8 7.4
MEAN 40.0 31.2 8.8
DAYS MAX >= 90 0
DAYS MAX <= 32 1
DAYS MIN <= 32 21
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 1.60 1983
MINIMUM 0.00 1974
TOTALS 0.18 0.40 -0.22 0.36
DAILY AVG. 0.01 0.01 -0.00
DAYS >= .01 4
DAYS >= .10 0
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.08 11/16 TO 11/17
STORM TOTAL 0.07
SNOWFALL (INCHES)
TOTALS MM 6.0 MM
SINCE 7/1 MM 13.8 MM
SNOWDEPTH AVG. MM
DAYS >= 1.0 MM
DEGREE DAYS
HEATING TOTAL 740 1016 -276
SINCE 7/1 1492 1955 -463
COOLING TOTAL 0 0 0
SINCE 1/1 442 320 122
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 10.4
RESULTANT WIND SPEED/DIRECTION 8/250
HIGHEST WIND SPEED/DIRECTION 40/260 DATE 11/07
HIGHEST GUST SPEED/DIRECTION 53/260 DATE 11/07
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.25
NUMBER OF DAYS FAIR 17
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 54
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 7 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 0
LIGHT SNOW 4 SLEET 0
FOG 6 FOG W/VIS <= 1/4 MILE 1
HAZE 3
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
LOOKING AHEAD TO DECEMBER 2025. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 33 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 16 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 29
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 13. THE AVERAGE MONTHLY
PRECIPITATION IS 0.31 INCHES.
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