681
CDUS45 KRIW 110045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN MAY 10 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 10 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 73 4:59 PM 85 1961 64 9 80
MINIMUM 35 5:07 AM 20 1990 35 0 40
AVERAGE 54 50 4 60
PRECIPITATION (IN)
TODAY 0.00 0.97 1980 0.07 -0.07 0.00
MONTH TO DATE 0.32 0.68 -0.36 0.34
SINCE MAR 1 1.76 2.93 -1.17 3.26
SINCE JAN 1 2.30 3.98 -1.68 3.98
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE T 1.5 -1.5 0.3
SINCE MAR 1 11.4 22.3 -10.9 16.0
SINCE JUL 1 27.1 70.6 -43.5 26.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 11 16 -5 5
MONTH TO DATE 165 174 -9 147
SINCE MAR 1 1371 1763 -392 1696
SINCE JUL 1 5548 7125 -1577 6711
COOLING
TODAY 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 18 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 11.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97
LOWEST 18
AVERAGE 58
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 65 83 1940
MINIMUM TEMPERATURE (F) 35 17 1968
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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