912
CDUS45 KRIW 230045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST MON DEC 22 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 22 2025
VALID TODAY AS OF 0500 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 58R 10:29 AM 58 1917 32 26 52
MINIMUM 50 3:46 PM -35 1990 9 41 27
AVERAGE 54 20 34 40
PRECIPITATION (IN)
TODAY 0.00 0.84 1979 0.02 -0.02 0.00
MONTH TO DATE 0.21 0.46 -0.25 0.00
SINCE DEC 1 0.21 0.46 -0.25 0.00
SINCE JAN 1 13.34 13.06 0.28 9.19
SNOWFALL (IN)
TODAY MM 0.3 MM 0.0
MONTH TO DATE 2.6 6.7 -4.1 0.0
SINCE DEC 1 2.6 6.7 -4.1 0.0
SINCE JUL 1 3.7 29.3 -25.6 10.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 11 45 -34 25
MONTH TO DATE 607 944 -337 688
SINCE DEC 1 607 944 -337 688
SINCE JUL 1 1977 2772 -795 2117
COOLING
TODAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 569 485 84 644
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 45 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 65 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 31.7
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 46
LOWEST 33
AVERAGE 40
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 57 1901
MINIMUM TEMPERATURE (F) 9 -37 1983
SUNRISE AND SUNSET
DECEMBER 22 2025......SUNRISE 7:43 AM MST SUNSET 4:45 PM MST
DECEMBER 23 2025......SUNRISE 7:43 AM MST SUNSET 4:45 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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