407
CDUS45 KRIW 310727
CLICPR
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1227 AM MST SAT JAN 31 2026
...............................
..THE CASPER WY CLIMATE SUMMARY FOR JANUARY 30 2026
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)
YESTERDAY
MAXIMUM 47 3:50 PM 60 1971 36 11 44
MINIMUM 30 9:32 AM -26 1985 15 15 16
AVERAGE 39 25 14
PRECIPITATION (IN)
YESTERDAY 0.00 0.33 2016 0.01 -0.01 0.00
MONTH TO DATE 0.19 0.47 -0.28 0.48
SINCE DEC 1 0.55 1.08 -0.53 0.64
SINCE JAN 1 0.19 0.47 -0.28 0.48
SNOWFALL (IN)
YESTERDAY 0.0 4.5 2016 0.3 -0.3 0.0
MONTH TO DATE 1.4 8.7 -7.3 6.7
SINCE DEC 1 6.9 19.7 -12.8 8.2
SINCE JUL 1 11.2 37.1 -25.9 8.2
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 26 40 -14 35
MONTH TO DATE 1037 1203 -166 1403
SINCE DEC 1 1900 2451 -551 2373
SINCE JUL 1 3326 4253 -927 3873
COOLING
YESTERDAY 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 25 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 34 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 13.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 51 6:00 AM
LOWEST 27 4:00 PM
AVERAGE 39
......................................................
THE CASPER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 36 58 1971
MINIMUM TEMPERATURE (F) 15 -24 1985
1996
SUNRISE AND SUNSET
JANUARY 31 2026.......SUNRISE 7:22 AM MST SUNSET 5:18 PM MST
FEBRUARY 1 2026......SUNRISE 7:20 AM MST SUNSET 5:19 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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