005
CDUS45 KRIW 100045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
545 PM MST TUE DEC 09 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 9 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 57 3:19 PM 64 1939 34 23 33
1975
MINIMUM 28 7:38 AM -36 1919 11 17 14
AVERAGE 43 22 21 24
PRECIPITATION (IN)
TODAY 0.00 0.68 1997 0.02 -0.02 0.00
MONTH TO DATE 0.18 0.20 -0.02 0.00
SINCE DEC 1 0.18 0.20 -0.02 0.00
SINCE JAN 1 13.31 12.80 0.51 9.19
SNOWFALL (IN)
TODAY MM 0.3 MM 0.0
MONTH TO DATE 2.6 2.9 -0.3 0.0
SINCE DEC 1 2.6 2.9 -0.3 0.0
SINCE JUL 1 3.7 25.5 -21.8 10.3
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 22 43 -21 41
MONTH TO DATE 302 372 -70 268
SINCE DEC 1 302 372 -70 268
SINCE JUL 1 1672 2200 -528 1697
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 28 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 8.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 72
LOWEST 32
AVERAGE 52
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 65 1933
MINIMUM TEMPERATURE (F) 11 -24 1932
1972
SUNRISE AND SUNSET
DECEMBER 9 2025......SUNRISE 7:34 AM MST SUNSET 4:41 PM MST
DECEMBER 10 2025......SUNRISE 7:35 AM MST SUNSET 4:41 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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