439
CDUS45 KRIW 220727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED APR 22 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 21 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 81 3:38 PM 83 1989 57 24 60
MINIMUM 42 3:54 AM 14 1973 29 13 28
AVERAGE 62 43 19
PRECIPITATION (IN)
YESTERDAY 0.00 0.63 1947 0.05 -0.05 0.02
MONTH TO DATE 0.78 0.91 -0.13 0.78
SINCE MAR 1 0.94 1.75 -0.81 2.11
SINCE JAN 1 1.48 2.80 -1.32 2.83
SNOWFALL (IN)
YESTERDAY 0.0 3.0 1996 0.3 -0.3 0.0
MONTH TO DATE 6.8 8.0 -1.2 7.7
SINCE MAR 1 8.4 18.3 -9.9 15.7
SINCE JUL 1 24.1 66.6 -42.5 26.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 3 22 -19 21
MONTH TO DATE 398 498 -100 516
SINCE MAR 1 984 1405 -421 1365
SINCE JUL 1 5161 6767 -1606 6380
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 21 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 28 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 10.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 50 4:00 AM
LOWEST 11 1:00 PM
AVERAGE 31
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 58 81 1994
MINIMUM TEMPERATURE (F) 29 12 1967
SUNRISE AND SUNSET
APRIL 22 2026.........SUNRISE 6:13 AM MDT SUNSET 7:57 PM MDT
APRIL 23 2026.........SUNRISE 6:11 AM MDT SUNSET 7:58 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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