866
CDUS45 KRIW 190731
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE AUG 19 2025
...............................
..THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 18 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 87 2:38 PM 94 2020 81 6 84
MINIMUM 50 5:54 AM 39 1978 53 -3 55
AVERAGE 69 67 2
PRECIPITATION (IN)
YESTERDAY 0.00 0.51 1996 0.01 -0.01 0.06
MONTH TO DATE 0.03 0.32 -0.29 0.69
SINCE JUN 1 0.43 1.49 -1.06 1.20
SINCE JAN 1 2.74 5.00 -2.26 4.07
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 10 9 1 7
SINCE JUN 1 79 189 -110 69
SINCE JUL 1 10 30 -20 14
COOLING
YESTERDAY 4 3 1 5
MONTH TO DATE 87 83 4 101
SINCE JUN 1 369 281 88 373
SINCE JAN 1 373 283 90 373
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION W (280)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 63 5:00 AM
LOWEST 12 3:00 PM
AVERAGE 38
......................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 90 1973
2013
2020
MINIMUM TEMPERATURE (F) 53 38 1978
SUNRISE AND SUNSET
AUGUST 19 2025........SUNRISE 6:29 AM MDT SUNSET 8:09 PM MDT
AUGUST 20 2025........SUNRISE 6:30 AM MDT SUNSET 8:08 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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