737
CDUS45 KRIW 160045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU MAY 15 2025
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 15 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 62 2:24 PM 87 1984 66 -4 63
MINIMUM 38 12:47 AM 27 1983 37 1 40
AVERAGE 50 52 -2 52
PRECIPITATION (IN)
TODAY 0.05 1.52 1991 0.08 -0.03 0.54
MONTH TO DATE 0.41 1.06 -0.65 1.85
SINCE MAR 1 3.33 3.31 0.02 3.64
SINCE JAN 1 4.05 4.36 -0.31 4.67
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.3 2.0 -1.7 3.9
SINCE MAR 1 16.0 22.8 -6.8 13.2
SINCE JUL 1 26.5 71.1 -44.6 42.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 15 13 2 13
MONTH TO DATE 185 245 -60 273
SINCE MAR 1 1734 1834 -100 1799
SINCE JUL 1 6749 7196 -447 6754
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 33 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 44 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 14.8
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 89
LOWEST 27
AVERAGE 58
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 88 2012
MINIMUM TEMPERATURE (F) 37 25 2009
SUNRISE AND SUNSET
MAY 15 2025...........SUNRISE 5:42 AM MDT SUNSET 8:23 PM MDT
MAY 16 2025...........SUNRISE 5:41 AM MDT SUNSET 8:24 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page