705
CDUS45 KRIW 210045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE MAY 20 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 20 2025
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 65 2:02 PM 89 1954 69 -4 48
1964
MINIMUM 39 12:25 AM 24 2003 39 0 41
AVERAGE 52 54 -2 45
PRECIPITATION (IN)
TODAY T 0.81 1975 0.07 -0.07 0.22
MONTH TO DATE 0.72 1.44 -0.72 2.07
SINCE MAR 1 3.64 3.69 -0.05 3.86
SINCE JAN 1 4.36 4.74 -0.38 4.89
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.3 2.3 -2.0 3.9
SINCE MAR 1 16.0 23.1 -7.1 13.2
SINCE JUL 1 26.5 71.4 -44.9 42.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 13 12 1 20
MONTH TO DATE 261 307 -46 324
SINCE MAR 1 1810 1896 -86 1850
SINCE JUL 1 6825 7258 -433 6805
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 31 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 12.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89
LOWEST 24
AVERAGE 57
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 69 87 1964
2006
MINIMUM TEMPERATURE (F) 39 26 2001
SUNRISE AND SUNSET
MAY 20 2025...........SUNRISE 5:38 AM MDT SUNSET 8:28 PM MDT
MAY 21 2025...........SUNRISE 5:37 AM MDT SUNSET 8:29 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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