309
CDUS45 KRIW 060045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT SEP 05 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 5 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 91 12:32 PM 98 2020 81 10 68
MINIMUM 57 2:50 AM 34 1965 46 11 38
AVERAGE 74 63 11 53
PRECIPITATION (IN)
TODAY 0.00 0.24 1993 0.03 -0.03 0.00
MONTH TO DATE 0.01 0.11 -0.10 0.01
SINCE SEP 1 0.01 0.11 -0.10 0.01
SINCE JAN 1 6.35 8.94 -2.59 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 4 -4 12
MONTH TO DATE 0 16 -16 15
SINCE SEP 1 0 16 -16 15
SINCE JUL 1 5 61 -56 25
COOLING
TODAY 9 2 7 0
MONTH TO DATE 29 11 18 4
SINCE SEP 1 29 11 18 4
SINCE JAN 1 622 423 199 454
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 11.3
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 49
LOWEST 16
AVERAGE 33
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 80 96 1978
2022
MINIMUM TEMPERATURE (F) 46 32 2025
SUNRISE AND SUNSET
SEPTEMBER 5 2026.....SUNRISE 6:35 AM MDT SUNSET 7:33 PM MDT
SEPTEMBER 6 2026.....SUNRISE 6:36 AM MDT SUNSET 7:31 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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