435
CDUS45 KRIW 230727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT MAY 23 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 22 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 60 4:44 PM 86 1980 69 -9 72
2006
MINIMUM 33 4:34 AM 22 2022 39 -6 28
AVERAGE 47 54 -7
PRECIPITATION (IN)
YESTERDAY 0.00 2.07 1952 0.07 -0.07 0.00
MONTH TO DATE 1.59 1.59 -0.00 0.74
SINCE MAR 1 3.03 3.84 -0.81 3.66
SINCE JAN 1 3.57 4.89 -1.32 4.38
SNOWFALL (IN)
YESTERDAY 0.0 2.5 1952 0.1 -0.1 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
DEGREE DAYS
HEATING
YESTERDAY 18 11 7 15
MONTH TO DATE 334 329 5 298
SINCE MAR 1 1540 1918 -378 1847
SINCE JUL 1 5717 7280 -1563 6862
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
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WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 10.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 1:00 AM
LOWEST 32 4:00 PM
AVERAGE 64
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 88 1984
MINIMUM TEMPERATURE (F) 40 28 1986
2002
2019
SUNRISE AND SUNSET
MAY 23 2026...........SUNRISE 5:35 AM MDT SUNSET 8:30 PM MDT
MAY 24 2026...........SUNRISE 5:35 AM MDT SUNSET 8:31 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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