045
CDUS45 KRIW 070045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT SEP 06 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 6 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 79 4:23 PM 96 1978 80 -1 84
2022
MINIMUM 32R 5:15 AM 33 1956 46 -14 47
2010
AVERAGE 56 63 -7 66
PRECIPITATION (IN)
TODAY 0.00 0.35 1951 0.02 -0.02 0.00
MONTH TO DATE 0.01 0.13 -0.12 0.15
SINCE SEP 1 0.01 0.13 -0.12 0.15
SINCE JAN 1 7.32 8.96 -1.64 7.13
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 9 4 5 0
MONTH TO DATE 24 20 4 7
SINCE SEP 1 24 20 4 7
SINCE JUL 1 34 65 -31 45
COOLING
TODAY 0 2 -2 1
MONTH TO DATE 4 13 -9 26
SINCE SEP 1 4 13 -9 26
SINCE JAN 1 454 425 29 501
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (100)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 3.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 85
LOWEST 18
AVERAGE 52
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 96 2022
MINIMUM TEMPERATURE (F) 45 28 2010
SUNRISE AND SUNSET
SEPTEMBER 6 2025.....SUNRISE 6:36 AM MDT SUNSET 7:31 PM MDT
SEPTEMBER 7 2025.....SUNRISE 6:37 AM MDT SUNSET 7:29 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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