337
CXUS55 KRIW 011337
CLMBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
637 AM MST THU JAN 01 2026
...............................
..THE BUFFALO WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER OBSERVED NORMAL DEPART LAST YEAR'S
VALUE DATE(S) VALUE FROM VALUE
NORMAL
..........................................................
TEMPERATURE (F)
RECORD
HIGH 78 12/01/2021
LOW -24 12/21/1998
HIGHEST 68 12/24
LOWEST -5 12/28
AVG. MAXIMUM 46.6 36.8 9.8
AVG. MINIMUM 24.0 17.1 6.9
MEAN 35.3 27.0 8.3
DAYS MAX >= 90 0
DAYS MAX <= 32 3
DAYS MIN <= 32 23
DAYS MIN <= 0 1
PRECIPITATION (INCHES)
RECORD
MAXIMUM 0.54 1999
MINIMUM 0.00 2009
TOTALS 0.13 0.17 -0.04 0.01
DAILY AVG. 0.00 0.01 -0.01
DAYS >= .01 5
DAYS >= .10 0
DAYS >= .50 0
DAYS >= 1.00 0
GREATEST
24 HR. TOTAL 0.05 12/06 TO 12/06
STORM TOTAL 0.05
SNOWFALL (INCHES)
TOTALS MM MM MM
SINCE 7/1 MM MM MM
SNOWDEPTH AVG. MM
DAYS >= 1.0 MM
DEGREE DAYS
HEATING TOTAL 913 1179 -266
SINCE 7/1 2303 2936 -633
COOLING TOTAL 0 0 0
SINCE 1/1 494 528 -34
..........................................................
WIND (MPH)
AVERAGE WIND SPEED 9.9
RESULTANT WIND SPEED/DIRECTION 3/270
HIGHEST WIND SPEED/DIRECTION 61/240 DATE 12/19
HIGHEST GUST SPEED/DIRECTION 80/330 DATE 12/17
80/320 12/18
80/240 12/19
SKY COVER
POSSIBLE SUNSHINE (PERCENT) MM
AVERAGE SKY COVER 0.33
NUMBER OF DAYS FAIR 16
NUMBER OF DAYS PC 12
NUMBER OF DAYS CLOUDY 3
AVERAGE RH (PERCENT) 57
WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM 1 MIXED PRECIP 0
HEAVY RAIN 0 RAIN 0
LIGHT RAIN 5 FREEZING RAIN 0
LT FREEZING RAIN 0 HAIL 0
HEAVY SNOW 1 SNOW 4
LIGHT SNOW 12 SLEET 0
FOG 12 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.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page