Climatological Report (Daily)
Issued by NWS
Issued by NWS
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990
CDUS45 KRIW 030729
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT WED SEP 03 2025
...................................
...THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 2 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 85 1:53 PM 98 2019 82 3 94
MINIMUM 46 5:55 AM 32 2008 47 -1 59
AVERAGE 66 64 2
PRECIPITATION (IN)
YESTERDAY 0.01 1.46 1973 0.02 -0.01 0.00
MONTH TO DATE 0.01 0.04 -0.03 0.00
SINCE SEP 1 0.01 0.04 -0.03 0.00
SINCE JAN 1 7.32 8.87 -1.55 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 0 3 -3 0
MONTH TO DATE 1 6 -5 0
SINCE SEP 1 1 6 -5 0
SINCE JUL 1 11 51 -40 38
COOLING
YESTERDAY 1 2 -1 12
MONTH TO DATE 1 5 -4 15
SINCE SEP 1 1 5 -4 15
SINCE JAN 1 451 417 34 490
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION N (350)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 82 6:00 AM
LOWEST 17 5:00 PM
AVERAGE 50
..........................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 95 2017
MINIMUM TEMPERATURE (F) 47 31 2010
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.
$$