053
CDUS45 KRIW 250726
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
126 AM MDT FRI SEP 25 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 24 2026
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)
YESTERDAY
MAXIMUM 78 2:28 PM 87 1966 71 7 73
2020
MINIMUM 42 6:20 AM 22 1984 39 3 44
AVERAGE 60 55 5
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 1986 0.04 -0.04 0.00
MONTH TO DATE 0.69 0.70 -0.01 2.49
SINCE SEP 1 0.69 0.70 -0.01 2.49
SINCE JAN 1 7.03 9.53 -2.50 9.80
SNOWFALL (IN)
YESTERDAY 0.0 2.9 1984 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.9 -0.9 0.0
SINCE SEP 1 0.0 0.9 -0.9 0.0
SINCE JUL 1 0.0 0.9 -0.9 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 5 10 -5 6
MONTH TO DATE 66 143 -77 99
SINCE SEP 1 66 143 -77 99
SINCE JUL 1 71 188 -117 109
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 43 29 14 17
SINCE SEP 1 43 29 14 17
SINCE JAN 1 636 441 195 467
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 21 HIGHEST GUST DIRECTION E (90)
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 3:00 AM
LOWEST 24 2:00 PM
AVERAGE 59
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 90 2014
MINIMUM TEMPERATURE (F) 39 20 1984
SUNRISE AND SUNSET
SEPTEMBER 25 2026.....SUNRISE 6:57 AM MDT SUNSET 6:57 PM MDT
SEPTEMBER 26 2026.....SUNRISE 6:58 AM MDT SUNSET 6:56 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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