375
CDUS45 KRIW 130729
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT MON APR 13 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 12 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 71 3:59 PM 77 2025 55 16 77
MINIMUM 35 11:48 PM -6 1997 27 8 33
AVERAGE 53 41 12
PRECIPITATION (IN)
YESTERDAY 0.00 0.31 1945 0.05 -0.05 0.00
MONTH TO DATE 0.22 0.49 -0.27 0.29
SINCE MAR 1 0.38 1.33 -0.95 1.62
SINCE JAN 1 0.92 2.38 -1.46 2.34
SNOWFALL (IN)
YESTERDAY 0.0 3.6 1991 0.4 -0.4 0.0
MONTH TO DATE 1.3 4.8 -3.5 3.7
SINCE MAR 1 2.9 15.1 -12.2 11.7
SINCE JUL 1 18.6 63.4 -44.8 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 12 24 -12 10
MONTH TO DATE 243 293 -50 281
SINCE MAR 1 829 1200 -371 1130
SINCE JUL 1 5006 6562 -1556 6145
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 35 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 48 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 17.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 70 3:00 AM
LOWEST 13 5:00 PM
AVERAGE 42
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 79 2017
MINIMUM TEMPERATURE (F) 28 7 2020
2022
SUNRISE AND SUNSET
APRIL 13 2026.........SUNRISE 6:27 AM MDT SUNSET 7:46 PM MDT
APRIL 14 2026.........SUNRISE 6:26 AM MDT SUNSET 7:47 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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