Climatological Report (Daily)
Issued by NWS
Issued by NWS
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661
CDUS45 KRIW 180733
CLIRKS
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT MON AUG 18 2025
...................................
...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR AUGUST 17 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 83 3:38 PM 92 2020 82 1 86
MINIMUM 56 5:08 AM 35 1968 53 3 52
AVERAGE 70 67 3
PRECIPITATION (IN)
YESTERDAY 0.02 0.29 1968 0.02 0.00 0.04
MONTH TO DATE 0.03 0.31 -0.28 0.63
SINCE JUN 1 0.43 1.48 -1.05 1.14
SINCE JAN 1 2.74 4.99 -2.25 4.01
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 10 8 2 7
SINCE JUN 1 79 188 -109 69
SINCE JUL 1 10 29 -19 14
COOLING
YESTERDAY 5 3 2 4
MONTH TO DATE 83 80 3 96
SINCE JUN 1 365 278 87 368
SINCE JAN 1 369 280 89 368
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 6.0
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 49 4:00 AM
LOWEST 17 4:00 PM
AVERAGE 33
..........................................................
THE ROCK SPRINGS WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 94 2020
MINIMUM TEMPERATURE (F) 53 39 1978
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:28 AM MDT SUNSET 8:11 PM MDT
AUGUST 19 2025........SUNRISE 6:29 AM MDT SUNSET 8:09 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$