Climatological Report (Daily)
Issued by NWS
Issued by NWS
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969
CDUS45 KRIW 110730
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST THU DEC 11 2025
...................................
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 10 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 52 2:07 PM 53 1981 30 22 26
MINIMUM 39 3:07 AM -28 1972 14 25 14
AVERAGE 46 22 24
PRECIPITATION (IN)
YESTERDAY 0.00 0.34 1949 0.01 -0.01 0.00
MONTH TO DATE 0.01 0.10 -0.09 0.00
SINCE DEC 1 0.01 0.10 -0.09 0.00
SINCE JAN 1 4.42 7.34 -2.92 5.69
DEGREE DAYS
HEATING
YESTERDAY 19 43 -24 45
MONTH TO DATE 335 420 -85 396
SINCE DEC 1 335 420 -85 396
SINCE JUL 1 1827 2374 -547 2034
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 47 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 61 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 23.7
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 72 12:00 AM
LOWEST 50 2:00 PM
AVERAGE 61
..........................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 30 51 2004
MINIMUM TEMPERATURE (F) 13 -24 1972
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 7:33 AM MST SUNSET 4:46 PM MST
DECEMBER 12 2025......SUNRISE 7:34 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.
$$