057
CDUS45 KRIW 220728
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST MON DEC 22 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 21 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 58R 1:48 PM 51 1969 28 30 41
MINIMUM 24 12:11 AM -29 1990 13 11 17
AVERAGE 41 20 21
PRECIPITATION (IN)
YESTERDAY T 0.19 1963 0.01 -0.01 0.00
MONTH TO DATE 0.05 0.21 -0.16 T
SINCE DEC 1 0.05 0.21 -0.16 T
SINCE JAN 1 4.46 7.45 -2.99 5.69
DEGREE DAYS
HEATING
YESTERDAY 24 44 -20 36
MONTH TO DATE 622 903 -281 806
SINCE DEC 1 622 903 -281 806
SINCE JUL 1 2114 2857 -743 2444
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 31 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 13.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.6
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 81 3:00 AM
LOWEST 33 2:00 PM
AVERAGE 57
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 28 47 1964
MINIMUM TEMPERATURE (F) 13 -29 1990
SUNRISE AND SUNSET
DECEMBER 22 2025......SUNRISE 7:40 AM MST SUNSET 4:50 PM MST
DECEMBER 23 2025......SUNRISE 7:41 AM MST SUNSET 4:50 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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