892
CDUS45 KRIW 100727
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST WED DEC 10 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 9 2025
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1948 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 49 3:25 PM 53 1975 30 19 27
2015
MINIMUM 33 12:22 AM -21 1972 14 19 11
AVERAGE 41 22 19
PRECIPITATION (IN)
YESTERDAY 0.00 0.50 1997 0.01 -0.01 0.00
MONTH TO DATE 0.01 0.09 -0.08 0.00
SINCE DEC 1 0.01 0.09 -0.08 0.00
SINCE JAN 1 4.42 7.33 -2.91 5.69
DEGREE DAYS
HEATING
YESTERDAY 24 43 -19 46
MONTH TO DATE 316 377 -61 351
SINCE DEC 1 316 377 -61 351
SINCE JUL 1 1808 2331 -523 1989
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 442 320 122 445
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 51 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 65 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 31.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 10:00 PM
LOWEST 42 12:00 PM
AVERAGE 56
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 53 1981
MINIMUM TEMPERATURE (F) 14 -28 1972
SUNRISE AND SUNSET
DECEMBER 10 2025......SUNRISE 7:32 AM MST SUNSET 4:46 PM MST
DECEMBER 11 2025......SUNRISE 7:33 AM MST SUNSET 4:46 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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