Climatological Report (Daily)
Issued by NWS
Issued by NWS
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791
CDUS45 KRIW 230045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT FRI AUG 22 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 22 2025...
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
TODAY
MAXIMUM 81 3:13 PM 97 2009 85 -4 89
2010
MINIMUM 54 5:32 AM 36 1966 50 4 50
AVERAGE 68 68 0 70
PRECIPITATION (IN)
TODAY 0.00 0.38 1992 0.02 -0.02 T
MONTH TO DATE 0.23 0.60 -0.37 0.19
SINCE JUN 1 1.90 3.13 -1.23 1.52
SINCE JAN 1 6.82 8.64 -1.82 6.78
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 4 10 -6 6
SINCE JUN 1 100 150 -50 76
SINCE JUL 1 9 24 -15 22
COOLING
TODAY 3 4 -1 5
MONTH TO DATE 136 126 10 154
SINCE JUN 1 438 377 61 442
SINCE JAN 1 438 381 57 445
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 10.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 87
LOWEST 38
AVERAGE 63
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 98 2020
MINIMUM TEMPERATURE (F) 50 29 2015
SUNRISE AND SUNSET
AUGUST 22 2025........SUNRISE 6:20 AM MDT SUNSET 7:56 PM MDT
AUGUST 23 2025........SUNRISE 6:21 AM MDT SUNSET 7:55 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$