289
CDUS45 KRIW 120045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SAT APR 11 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 11 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 74 12:23 PM 80 2025 55 19 80
MINIMUM 33 3:43 AM 0 1997 27 6 27
AVERAGE 54 41 13 54
PRECIPITATION (IN)
TODAY T 0.45 1943 0.04 -0.04 0.00
MONTH TO DATE 0.22 0.44 -0.22 0.29
SINCE MAR 1 0.38 1.28 -0.90 1.62
SINCE JAN 1 0.92 2.33 -1.41 2.34
SNOWFALL (IN)
TODAY MM 0.4 MM 0.0
MONTH TO DATE 1.3 4.4 -3.1 3.7
SINCE MAR 1 2.9 14.7 -11.8 11.7
SINCE JUL 1 18.6 63.0 -44.4 22.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 11 24 -13 11
MONTH TO DATE 231 269 -38 271
SINCE MAR 1 817 1176 -359 1120
SINCE JUL 1 4994 6538 -1544 6135
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 39 HIGHEST WIND DIRECTION SW (210)
HIGHEST GUST SPEED 50 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 15.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.3
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 88
LOWEST 17
AVERAGE 53
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 77 2025
MINIMUM TEMPERATURE (F) 27 -6 1997
SUNRISE AND SUNSET
APRIL 11 2026.........SUNRISE 6:31 AM MDT SUNSET 7:44 PM MDT
APRIL 12 2026.........SUNRISE 6:29 AM MDT SUNSET 7:45 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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