Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 020728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT TUE SEP 02 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 1 2025...
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)
YESTERDAY
MAXIMUM 84 3:56 PM 97 1995 82 2 91
MINIMUM 43 5:07 AM 32 1965 47 -4 45
AVERAGE 64 65 -1
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 1973 0.02 -0.02 0.00
MONTH TO DATE 0.00 0.02 -0.02 0.00
SINCE SEP 1 0.00 0.02 -0.02 0.00
SINCE JAN 1 7.31 8.85 -1.54 6.98
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 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 0
DEGREE DAYS
HEATING
YESTERDAY 1 3 -2 0
MONTH TO DATE 1 3 -2 0
SINCE SEP 1 1 3 -2 0
SINCE JUL 1 11 48 -37 38
COOLING
YESTERDAY 0 3 -3 3
MONTH TO DATE 0 3 -3 3
SINCE SEP 1 0 3 -3 3
SINCE JAN 1 450 415 35 478
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 14 HIGHEST WIND DIRECTION N (350)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.9
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 93 5:00 AM
LOWEST 16 3:00 PM
AVERAGE 55
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2019
MINIMUM TEMPERATURE (F) 47 32 2008
SUNRISE AND SUNSET
SEPTEMBER 2 2025.....SUNRISE 6:32 AM MDT SUNSET 7:38 PM MDT
SEPTEMBER 3 2025.....SUNRISE 6:33 AM MDT SUNSET 7:36 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$