793
CDUS45 KRIW 160045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT FRI MAY 15 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 15 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 79 2:21 PM 87 1984 66 13 62
MINIMUM 41 4:19 AM 27 1983 37 4 38
AVERAGE 60 52 8 50
PRECIPITATION (IN)
TODAY T 1.52 1991 0.08 -0.08 0.05
MONTH TO DATE 0.32 1.06 -0.74 0.41
SINCE MAR 1 1.76 3.31 -1.55 3.33
SINCE JAN 1 2.30 4.36 -2.06 4.05
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE T 2.0 -2.0 0.3
SINCE MAR 1 11.4 22.8 -11.4 16.0
SINCE JUL 1 27.1 71.1 -44.0 26.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 5 13 -8 15
MONTH TO DATE 187 245 -58 185
SINCE MAR 1 1393 1834 -441 1734
SINCE JUL 1 5570 7196 -1626 6749
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 W (260)
HIGHEST GUST SPEED 58 HIGHEST GUST DIRECTION SW (220)
AVERAGE WIND SPEED 13.1
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 34
LOWEST 8
AVERAGE 21
......................................................
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 2026...........SUNRISE 5:43 AM MDT SUNSET 8:22 PM MDT
MAY 16 2026...........SUNRISE 5:42 AM MDT SUNSET 8:23 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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