995
CDUS45 KRIW 210045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST SAT DEC 20 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 20 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 43 3:29 PM 56 2024 32 11 56
MINIMUM 19 7:57 AM -37 1924 9 10 21
AVERAGE 31 20 11 39
PRECIPITATION (IN)
TODAY 0.00 0.35 1920 0.02 -0.02 0.00
MONTH TO DATE 0.21 0.42 -0.21 0.00
SINCE DEC 1 0.21 0.42 -0.21 0.00
SINCE JAN 1 13.34 13.02 0.32 9.19
SNOWFALL (IN)
TODAY MM 0.2 MM 0.0
MONTH TO DATE 2.6 6.1 -3.5 0.0
SINCE DEC 1 2.6 6.1 -3.5 0.0
SINCE JUL 1 3.7 28.7 -25.0 10.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 34 45 -11 26
MONTH TO DATE 572 854 -282 636
SINCE DEC 1 572 854 -282 636
SINCE JUL 1 1942 2682 -740 2065
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 20 HIGHEST WIND DIRECTION NE (40)
HIGHEST GUST SPEED 26 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 4.9
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 92
LOWEST 26
AVERAGE 59
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 61 1969
MINIMUM TEMPERATURE (F) 9 -35 1990
SUNRISE AND SUNSET
DECEMBER 20 2025......SUNRISE 7:42 AM MST SUNSET 4:44 PM MST
DECEMBER 21 2025......SUNRISE 7:42 AM MST SUNSET 4:44 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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