280
CDUS45 KRIW 180045
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST SAT JAN 17 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JANUARY 17 2026
VALID TODAY AS OF 0500 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 39 3:52 PM 56 2000 36 3 34
MINIMUM 2 7:44 AM -31 1943 15 -13 9
AVERAGE 21 25 -4 22
PRECIPITATION (IN)
TODAY T 0.23 1996 0.01 -0.01 0.15
MONTH TO DATE 0.13 0.27 -0.14 0.43
SINCE DEC 1 0.49 0.88 -0.39 0.59
SINCE JAN 1 0.13 0.27 -0.14 0.43
SNOWFALL (IN)
TODAY MM 0.2 MM 2.0
MONTH TO DATE 1.2 4.8 -3.6 6.0
SINCE DEC 1 6.7 15.8 -9.1 7.5
SINCE JUL 1 11.0 33.2 -22.2 7.5
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 44 40 4 43
MONTH TO DATE 478 683 -205 733
SINCE DEC 1 1341 1931 -590 1703
SINCE JUL 1 2767 3733 -966 3203
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 0 0 0 0
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 26 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 35 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 10.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 83
LOWEST 25
AVERAGE 54
......................................................
THE CASPER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 54 1999
MINIMUM TEMPERATURE (F) 15 -30 1943
SUNRISE AND SUNSET
JANUARY 17 2026.......SUNRISE 7:33 AM MST SUNSET 5:00 PM MST
JANUARY 18 2026.......SUNRISE 7:32 AM MST SUNSET 5:01 PM MST
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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