Climatological Report (Daily)
Issued by NWS
Issued by NWS
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970
CDUS45 KRIW 110730
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1230 AM MST THU DEC 11 2025
...................................
...THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 10 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 52 2:40 PM 65 1933 33 19 37
MINIMUM 27 7:59 AM -24 1932 11 16 11
1972
AVERAGE 40 22 18
PRECIPITATION (IN)
YESTERDAY 0.00 0.57 1949 0.02 -0.02 0.00
MONTH TO DATE 0.18 0.22 -0.04 0.00
SINCE DEC 1 0.18 0.22 -0.04 0.00
SINCE JAN 1 13.31 12.82 0.49 9.19
SNOWFALL (IN)
YESTERDAY 0.0 11.2 1949 0.4 -0.4 0.0
MONTH TO DATE 2.6 3.3 -0.7 0.0
SINCE DEC 1 2.6 3.3 -0.7 0.0
SINCE JUL 1 3.7 25.9 -22.2 10.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 25 43 -18 41
MONTH TO DATE 327 415 -88 309
SINCE DEC 1 327 415 -88 309
SINCE JUL 1 1697 2243 -546 1738
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
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION SW (220)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION SW (210)
AVERAGE WIND SPEED 4.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 92 6:00 AM
LOWEST 50 4:00 PM
AVERAGE 71
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 33 65 1937
MINIMUM TEMPERATURE (F) 11 -26 1972
SUNRISE AND SUNSET
DECEMBER 11 2025......SUNRISE 7:36 AM MST SUNSET 4:41 PM MST
DECEMBER 12 2025......SUNRISE 7:37 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.
$$