491
CDUS45 KRIW 110728
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SAT APR 11 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 10 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 67 4:08 PM 76 1996 55 12 68
MINIMUM 25 5:26 AM -2 1997 27 -2 19
AVERAGE 46 41 5
PRECIPITATION (IN)
YESTERDAY T 0.53 1943 0.05 -0.05 0.00
MONTH TO DATE 0.22 0.40 -0.18 0.29
SINCE MAR 1 0.38 1.24 -0.86 1.62
SINCE JAN 1 0.92 2.29 -1.37 2.34
SNOWFALL (IN)
YESTERDAY 0.0 5.8 1958 0.4 -0.4 0.0
MONTH TO DATE 1.3 4.0 -2.7 3.7
SINCE MAR 1 2.9 14.3 -11.4 11.7
SINCE JUL 1 18.6 62.6 -44.0 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 19 24 -5 21
MONTH TO DATE 220 245 -25 260
SINCE MAR 1 806 1152 -346 1109
SINCE JUL 1 4983 6514 -1531 6124
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 (250)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 6.7
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 81 6:00 AM
LOWEST 27 4:00 PM
AVERAGE 54
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 80 2025
MINIMUM TEMPERATURE (F) 27 0 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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