898
CDUS45 KRIW 140045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT WED MAY 13 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR MAY 13 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 92R 2:21 PM 88 2013 66 26 72
MINIMUM 35 3:53 AM 22 1983 36 -1 44
AVERAGE 64 51 13 58
PRECIPITATION (IN)
TODAY T 0.99 1942 0.08 -0.08 0.00
MONTH TO DATE 0.32 0.91 -0.59 0.34
SINCE MAR 1 1.76 3.16 -1.40 3.26
SINCE JAN 1 2.30 4.21 -1.91 3.98
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE T 1.8 -1.8 0.3
SINCE MAR 1 11.4 22.6 -11.2 16.0
SINCE JUL 1 27.1 70.9 -43.8 26.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 1 14 -13 7
MONTH TO DATE 179 218 -39 156
SINCE MAR 1 1385 1807 -422 1705
SINCE JUL 1 5562 7169 -1607 6720
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 39 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 49 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 5.3
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 88
LOWEST 9
AVERAGE 49
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 66 88 2013
MINIMUM TEMPERATURE (F) 37 22 2004
SUNRISE AND SUNSET
MAY 13 2026...........SUNRISE 5:45 AM MDT SUNSET 8:20 PM MDT
MAY 14 2026...........SUNRISE 5:44 AM MDT SUNSET 8:21 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