Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 150728
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1228 AM MST MON DEC 15 2025
...................................
...THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 14 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 55 1:43 PM 61 1924 33 22 44
MINIMUM 28 3:29 AM -26 1926 10 18 19
AVERAGE 42 21 21
PRECIPITATION (IN)
YESTERDAY 0.00 0.74 2014 0.02 -0.02 0.00
MONTH TO DATE 0.18 0.31 -0.13 0.00
SINCE DEC 1 0.18 0.31 -0.13 0.00
SINCE JAN 1 13.31 12.91 0.40 9.19
SNOWFALL (IN)
YESTERDAY 0.0 5.2 1988 0.3 -0.3 0.0
MONTH TO DATE 2.6 4.5 -1.9 0.0
SINCE DEC 1 2.6 4.5 -1.9 0.0
SINCE JUL 1 3.7 27.1 -23.4 10.3
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 23 44 -21 33
MONTH TO DATE 413 589 -176 444
SINCE DEC 1 413 589 -176 444
SINCE JUL 1 1783 2417 -634 1873
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 10 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 12 HIGHEST GUST DIRECTION NW (330)
AVERAGE WIND SPEED 3.5
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 9:00 PM
LOWEST 31 1:00 PM
AVERAGE 46
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 60 1980
MINIMUM TEMPERATURE (F) 10 -22 1926
SUNRISE AND SUNSET
DECEMBER 15 2025......SUNRISE 7:39 AM MST SUNSET 4:42 PM MST
DECEMBER 16 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.
$$