295
CDUS45 KRIW 160732
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1232 AM MST TUE DEC 16 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 15 2025
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)
YESTERDAY
MAXIMUM 57 2:45 PM 60 1980 32 25 45
MINIMUM 28 8:28 AM -22 1926 10 18 18
AVERAGE 43 21 22
PRECIPITATION (IN)
YESTERDAY 0.00 0.48 1915 0.02 -0.02 0.00
MONTH TO DATE 0.18 0.33 -0.15 0.00
SINCE DEC 1 0.18 0.33 -0.15 0.00
SINCE JAN 1 13.31 12.93 0.38 9.19
SNOWFALL (IN)
YESTERDAY 0.0 4.7 1992 0.2 -0.2 0.0
MONTH TO DATE 2.6 4.7 -2.1 0.0
SINCE DEC 1 2.6 4.7 -2.1 0.0
SINCE JUL 1 3.7 27.3 -23.6 10.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 22 44 -22 33
MONTH TO DATE 435 633 -198 477
SINCE DEC 1 435 633 -198 477
SINCE JUL 1 1805 2461 -656 1906
COOLING
YESTERDAY 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
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WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 5.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 61 12:00 AM
LOWEST 12 3:00 PM
AVERAGE 37
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THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 60 1939
1980
MINIMUM TEMPERATURE (F) 10 -21 1897
SUNRISE AND SUNSET
DECEMBER 16 2025......SUNRISE 7:40 AM MST SUNSET 4:42 PM MST
DECEMBER 17 2025......SUNRISE 7:40 AM MST SUNSET 4:42 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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