Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 010035
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
635 PM MDT SUN AUG 31 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR AUGUST 31 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 82 3:52 PM 94 1954 83 -1 90
2007
MINIMUM 49 4:02 AM 33 1965 47 2 43
1977
2020
AVERAGE 66 65 1 67
PRECIPITATION (IN)
TODAY 0.00 0.14 1972 0.02 -0.02 0.00
MONTH TO DATE 0.72 0.79 -0.07 0.39
SINCE JUN 1 2.39 3.32 -0.93 1.72
SINCE JAN 1 7.31 8.83 -1.52 6.98
SNOWFALL (IN)
TODAY 0.0 0.0 0.0 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 0
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 5 28 -23 22
SINCE JUN 1 101 168 -67 92
SINCE JUL 1 10 42 -32 38
COOLING
TODAY 1 3 -2 2
MONTH TO DATE 148 157 -9 184
SINCE JUN 1 450 408 42 472
SINCE JAN 1 450 412 38 475
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (290)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 8.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93
LOWEST 17
AVERAGE 55
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 97 1995
MINIMUM TEMPERATURE (F) 47 32 1965
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:30 AM MDT SUNSET 7:41 PM MDT
SEPTEMBER 1 2025.....SUNRISE 6:31 AM MDT SUNSET 7:40 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$