342
CDUS45 KRIW 100045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU APR 09 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR APRIL 9 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 62 10:04 AM 78 1977 55 7 65
MINIMUM 31 3:30 AM 4 1973 27 4 27
2013
AVERAGE 47 41 6 46
PRECIPITATION (IN)
TODAY 0.00 0.93 1950 0.04 -0.04 0.00
MONTH TO DATE 0.22 0.35 -0.13 0.29
SINCE MAR 1 0.38 1.19 -0.81 1.62
SINCE JAN 1 0.92 2.24 -1.32 2.34
SNOWFALL (IN)
TODAY MM 0.4 MM 0.0
MONTH TO DATE 1.3 3.6 -2.3 3.7
SINCE MAR 1 2.9 13.9 -11.0 11.7
SINCE JUL 1 18.6 62.2 -43.6 22.2
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 18 24 -6 19
MONTH TO DATE 201 221 -20 239
SINCE MAR 1 787 1128 -341 1088
SINCE JUL 1 4964 6490 -1526 6103
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 24 HIGHEST WIND DIRECTION N (10)
HIGHEST GUST SPEED 31 HIGHEST GUST DIRECTION N (10)
AVERAGE WIND SPEED 12.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61
LOWEST 19
AVERAGE 40
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 55 76 1996
MINIMUM TEMPERATURE (F) 27 -2 1997
SUNRISE AND SUNSET
APRIL 9 2026.........SUNRISE 6:34 AM MDT SUNSET 7:42 PM MDT
APRIL 10 2026.........SUNRISE 6:32 AM MDT SUNSET 7:43 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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