Climatological Report (Daily)
Issued by NWS
Issued by NWS
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795
CDUS45 KRIW 040045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED SEP 03 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 3 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 88 2:51 PM 95 2017 82 6 91
MINIMUM 48 5:49 AM 31 2010 47 1 58
AVERAGE 68 64 4 75
PRECIPITATION (IN)
TODAY 0.00 0.86 1943 0.02 -0.02 0.09
MONTH TO DATE 0.01 0.06 -0.05 0.09
SINCE SEP 1 0.01 0.06 -0.05 0.09
SINCE JAN 1 7.32 8.89 -1.57 7.07
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE SEP 1 0.0 0.0 0.0 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 0 3 -3 0
MONTH TO DATE 1 9 -8 0
SINCE SEP 1 1 9 -8 0
SINCE JUL 1 11 54 -43 38
COOLING
TODAY 3 2 1 10
MONTH TO DATE 4 7 -3 25
SINCE SEP 1 4 7 -3 25
SINCE JAN 1 454 419 35 500
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77
LOWEST 13
AVERAGE 45
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 100 2022
MINIMUM TEMPERATURE (F) 46 34 2006
SUNRISE AND SUNSET
SEPTEMBER 3 2025.....SUNRISE 6:33 AM MDT SUNSET 7:36 PM MDT
SEPTEMBER 4 2025.....SUNRISE 6:34 AM MDT SUNSET 7:35 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$