505
CDUS45 KRIW 150727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT WED APR 15 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 14 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 62 4:40 PM 78 2015 56 6 54
MINIMUM 28 5:54 AM 0 1945 28 0 13
AVERAGE 45 42 3
PRECIPITATION (IN)
YESTERDAY 0.00 0.43 2012 0.05 -0.05 0.00
MONTH TO DATE 0.22 0.58 -0.36 0.29
SINCE MAR 1 0.38 1.42 -1.04 1.62
SINCE JAN 1 0.92 2.47 -1.55 2.34
SNOWFALL (IN)
YESTERDAY 0.0 4.5 2000 0.4 -0.4 0.0
MONTH TO DATE 1.3 5.6 -4.3 3.7
SINCE MAR 1 2.9 15.9 -13.0 11.7
SINCE JUL 1 18.6 64.2 -45.6 22.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 20 23 -3 31
MONTH TO DATE 279 340 -61 339
SINCE MAR 1 865 1247 -382 1188
SINCE JUL 1 5042 6609 -1567 6203
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 W (270)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 9.0
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 53 6:00 AM
LOWEST 13 5:00 PM
AVERAGE 33
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THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 56 79 1962
MINIMUM TEMPERATURE (F) 28 -3 1945
SUNRISE AND SUNSET
APRIL 15 2026.........SUNRISE 6:24 AM MDT SUNSET 7:48 PM MDT
APRIL 16 2026.........SUNRISE 6:22 AM MDT SUNSET 7:50 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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