084
CXUS55 KRIW 011837
CLMRIW
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1115 AM MST MON DEC 01 2025
...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON 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
..RIVERTON WAS WARMER AND DRIER THAN NORMAL IN NOVEMBER.
THE AVERAGE TEMPERATURE FOR RIVERTON IN NOVEMBER WAS 38.6 DEGREES
WHICH WAS 7.8 DEGREES ABOVE NORMAL. IT WAS THE 3RD WARMEST NOVEMBER
SINCE RECORDS BEGAN IN 1996. THE WARMEST READING FOR THE MONTH WAS
71 DEGREES ON THE 2ND AND BROKE THE 2008 RECORD OF 67. IT TIED WITH
THE 1ST FOR THE HIGHEST TEMPERATURE IN NOVEMBER. IT ALSO SETS A NEW
RECORD FOR LATEST 70-PLUS DEGREE DAY FOR THE YEAR. THE 11TH HIT 65
AND BROKE 62 FROM 1999. THE 14TH HIGH OF 64 TIED THE 2016 RECORD.
THE COLDEST READING WAS 6 DEGREES ON THE 29TH.
PRECIPITATION FOR THE MONTH WAS 0.29 INCHES...WHICH IS 85 PERCENT OF
NORMAL. THE WETTEST 24-HOURS WAS THE 16TH-17TH WHEN 0.25 INCHES
FELL. NO PRECIPITATION OR SNOWFALL RECORDS WERE BROKEN THIS MONTH.
SNOWFALL FOR THE MONTH WAS 2 INCHES. THE SNOWIEST 24-HOURS WAS ON
THE 28TH WHEN 2 INCHES FELL. THE HIGHEST WIND GUST WAS 51 MPH FROM
THE NORTHWEST AND OCCURRED ON THE 7TH.
..THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF NOVEMBER 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1995 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 71 11/01/2014
LOW -21 11/13/2014
HIGHEST 71R 11/02
LOWEST 6 11/29
AVG. MAXIMUM 50.4 42.6 7.8
AVG. MINIMUM 26.8 18.9 7.9
MEAN 38.6 30.8 7.8
DAYS MAX >= 90 0
DAYS MAX <= 32 2
DAYS MIN <= 32 20
DAYS MIN <= 0 0
PRECIPITATION (INCHES)
RECORD
MAXIMUM 1.06 2023
MINIMUM 0.03 2013
TOTALS 0.29 0.34 -0.05 0.15
DAILY AVG. 0.01 0.01 -0.00
DAYS >= .01 3
DAYS >= .10 1
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.25 11/16 TO 11/17
STORM TOTAL 0.22
SNOWFALL (INCHES)
TOTALS 2.0 MM MM
SINCE 7/1 2.0 MM MM
SNOWDEPTH AVG. 0
DAYS >= 1.0 1
DEGREE DAYS
HEATING TOTAL 785 1028 -243
SINCE 7/1 1443 1896 -453
COOLING TOTAL 0 0 0
SINCE 1/1 611 499 112
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 6.9
RESULTANT WIND SPEED/DIRECTION 3/300
HIGHEST WIND SPEED/DIRECTION 36/010 DATE 11/28
HIGHEST GUST SPEED/DIRECTION 51/320 DATE 11/07
51/360 11/28
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.17
NUMBER OF DAYS FAIR 25
NUMBER OF DAYS PC 4
NUMBER OF DAYS CLOUDY 1
AVERAGE RH (PERCENT) 58
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 0 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 2 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 0 SNOW 1
LIGHT SNOW 2 SLEET 0
FOG 3 FOG W/VIS <= 1/4 MILE 2
HAZE 2
- 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 35 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 12 DEGREES. THE AVERAGE HIGH AT THE END OF THE MONTH IS 30
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 7. THE AVERAGE MONTHLY
PRECIPITATION IS 0.26 INCHES.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page