771
CDUS45 KRIW 040045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU SEP 03 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 3 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 85 3:57 PM 95 2017 82 3 88
MINIMUM 55 4:45 AM 31 2010 47 8 48
AVERAGE 70 64 6 68
PRECIPITATION (IN)
TODAY 0.01 0.86 1943 0.02 -0.01 0.00
MONTH TO DATE 0.01 0.06 -0.05 0.01
SINCE SEP 1 0.01 0.06 -0.05 0.01
SINCE JAN 1 6.35 8.89 -2.54 7.32
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 0 9 -9 1
SINCE SEP 1 0 9 -9 1
SINCE JUL 1 5 54 -49 11
COOLING
TODAY 5 2 3 3
MONTH TO DATE 17 7 10 4
SINCE SEP 1 17 7 10 4
SINCE JAN 1 610 419 191 454
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 17.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 67
LOWEST 8
AVERAGE 38
......................................................
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 2026.....SUNRISE 6:33 AM MDT SUNSET 7:37 PM MDT
SEPTEMBER 4 2026.....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.
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