380
CDUS45 KRIW 240731
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT SUN MAY 24 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 23 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 73 MM 88 1984 70 3 72
MINIMUM 35 MM 28 1986 40 -5 38
2002
2019
AVERAGE 54 55 -1
PRECIPITATION (IN)
YESTERDAY 0.00 0.84 1965 0.07 -0.07 0.00
MONTH TO DATE 1.59 1.66 -0.07 0.74
SINCE MAR 1 3.03 3.91 -0.88 3.66
SINCE JAN 1 3.57 4.96 -1.39 4.38
SNOWFALL (IN)
YESTERDAY 0.0 1.6 1995 0.0 0.0 0.0
MONTH TO DATE 2.5 2.4 0.1 0.3
SINCE MAR 1 13.9 23.2 -9.3 16.0
SINCE JUL 1 29.6 71.5 -41.9 26.5
SNOW DEPTH 0.0
DEGREE DAYS
HEATING
YESTERDAY 11 10 1 10
MONTH TO DATE 345 339 6 308
SINCE MAR 1 1551 1928 -377 1857
SINCE JUL 1 5728 7290 -1562 6872
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE MAR 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 17 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 30 HIGHEST GUST DIRECTION W (290)
AVERAGE WIND SPEED 9.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89 2:00 AM
LOWEST 17 5:00 PM
AVERAGE 53
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 86 1967
MINIMUM TEMPERATURE (F) 40 26 2022
SUNRISE AND SUNSET
MAY 24 2026...........SUNRISE 5:35 AM MDT SUNSET 8:31 PM MDT
MAY 25 2026...........SUNRISE 5:34 AM MDT SUNSET 8:32 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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