925
CDUS45 KRIW 100728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN MAY 10 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 9 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 9:47 AM 83 1962 64 -4 75
MINIMUM 38 11:58 PM 18 2002 35 3 39
AVERAGE 49 49 0
PRECIPITATION (IN)
YESTERDAY 0.07 0.60 2011 0.07 0.00 0.00
MONTH TO DATE 0.32 0.61 -0.29 0.34
SINCE MAR 1 1.76 2.86 -1.10 3.26
SINCE JAN 1 2.30 3.91 -1.61 3.98
SNOWFALL (IN)
YESTERDAY 0.0 3.3 2015 0.2 -0.2 0.0
MONTH TO DATE T 1.4 -1.4 0.3
SINCE MAR 1 11.4 22.2 -10.8 16.0
SINCE JUL 1 27.1 70.5 -43.4 26.5
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 16 16 0 8
MONTH TO DATE 154 158 -4 142
SINCE MAR 1 1360 1747 -387 1691
SINCE JUL 1 5537 7109 -1572 6706
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 32 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 8.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.5
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 93 11:00 PM
LOWEST 45 9:00 AM
AVERAGE 69
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 64 85 1961
MINIMUM TEMPERATURE (F) 35 20 1990
SUNRISE AND SUNSET
MAY 10 2026...........SUNRISE 5:48 AM MDT SUNSET 8:17 PM MDT
MAY 11 2026...........SUNRISE 5:47 AM MDT SUNSET 8:18 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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