829
CDUS45 KRIW 170727
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST WED DEC 17 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR DECEMBER 16 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 51R 2:04 PM 51 1980 29 22 35
MINIMUM 36 3:47 AM -12 1972 13 23 15
AVERAGE 44 21 23
PRECIPITATION (IN)
YESTERDAY 0.00 0.27 1967 0.01 -0.01 0.00
MONTH TO DATE 0.01 0.16 -0.15 T
SINCE DEC 1 0.01 0.16 -0.15 T
SINCE JAN 1 4.42 7.40 -2.98 5.69
DEGREE DAYS
HEATING
YESTERDAY 21 44 -23 40
MONTH TO DATE 481 683 -202 632
SINCE DEC 1 481 683 -202 632
SINCE JUL 1 1973 2637 -664 2270
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 40 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 20.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 53 8:00 PM
LOWEST 25 2:00 AM
AVERAGE 39
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 29 57 1980
MINIMUM TEMPERATURE (F) 13 -16 1964
SUNRISE AND SUNSET
DECEMBER 17 2025......SUNRISE 7:37 AM MST SUNSET 4:48 PM MST
DECEMBER 18 2025......SUNRISE 7:38 AM MST SUNSET 4:48 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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