340
CDUS45 KRIW 020727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED SEP 02 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR SEPTEMBER 1 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 83 2:39 PM 97 1995 82 1 84
MINIMUM 58 10:52 PM 32 1965 47 11 43
AVERAGE 71 65 6
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 1973 0.02 -0.02 0.00
MONTH TO DATE 0.00 0.02 -0.02 0.00
SINCE SEP 1 0.00 0.02 -0.02 0.00
SINCE JAN 1 6.34 8.85 -2.51 7.31
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 1
MONTH TO DATE 0 3 -3 1
SINCE SEP 1 0 3 -3 1
SINCE JUL 1 5 48 -43 11
COOLING
YESTERDAY 6 3 3 0
MONTH TO DATE 6 3 3 0
SINCE SEP 1 6 3 3 0
SINCE JAN 1 599 415 184 450
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WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 45 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 14.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 8:00 AM
LOWEST 22 4:00 PM
AVERAGE 42
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 82 98 2019
MINIMUM TEMPERATURE (F) 47 32 2008
SUNRISE AND SUNSET
SEPTEMBER 2 2026.....SUNRISE 6:32 AM MDT SUNSET 7:38 PM MDT
SEPTEMBER 3 2026.....SUNRISE 6:33 AM MDT SUNSET 7:37 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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