641
CDUS45 KRIW 210749
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1249 AM MST THU DEC 21 2023
...............................
..THE LANDER WY CLIMATE SUMMARY FOR DECEMBER 20 2023
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2023
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 42 1:16 PM 55 1917 32 10 26
MINIMUM 25 1:54 AM -37 1924 9 16 8
AVERAGE 34 20 14
PRECIPITATION (IN)
YESTERDAY 0.00 0.35 1920 0.02 -0.02 0.00
MONTH TO DATE 0.03 0.42 -0.39 0.91
SINCE DEC 1 0.03 0.42 -0.39 0.91
SINCE JAN 1 17.04 13.02 4.02 13.51
SNOWFALL (IN)
YESTERDAY 0.0 4.3 1968 0.2 -0.2 0.0
MONTH TO DATE 0.1 6.1 -6.0 9.1
SINCE DEC 1 0.1 6.1 -6.0 9.1
SINCE JUL 1 24.3 28.7 -4.4 23.3
SNOW DEPTH 1
DEGREE DAYS
HEATING
YESTERDAY 31 45 -14 48
MONTH TO DATE 758 854 -96 940
SINCE DEC 1 758 854 -96 940
SINCE JUL 1 2366 2682 -316 2687
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE DEC 1 0 0 0 0
SINCE JAN 1 361 485 -124 720
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WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 11 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 3.1
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 82 11:00 PM
LOWEST 57 1:00 PM
AVERAGE 70
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THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 32 61 1969
MINIMUM TEMPERATURE (F) 9 -35 1990
SUNRISE AND SUNSET
DECEMBER 21 2023......SUNRISE 7:42 AM MST SUNSET 4:44 PM MST
DECEMBER 22 2023......SUNRISE 7:43 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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