Climatological Report (Daily)
Issued by NWS
Issued by NWS
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690
CDUS45 KRIW 180733
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
133 AM MDT MON AUG 18 2025
...................................
...THE LANDER WY CLIMATE SUMMARY FOR AUGUST 17 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 85 3:54 PM 96 2013 86 -1 93
2020
MINIMUM 56 5:42 AM 38 2009 54 2 52
AVERAGE 71 70 1
PRECIPITATION (IN)
YESTERDAY T 0.58 1984 0.02 -0.02 0.00
MONTH TO DATE 0.05 0.31 -0.26 0.45
SINCE JUN 1 1.03 1.98 -0.95 0.87
SINCE JAN 1 9.59 9.23 0.36 6.73
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 1 -1 0
MONTH TO DATE 2 3 -1 1
SINCE JUN 1 92 141 -49 42
SINCE JUL 1 4 17 -13 7
COOLING
YESTERDAY 6 6 0 8
MONTH TO DATE 121 117 4 112
SINCE JUN 1 445 390 55 477
SINCE JAN 1 453 395 58 477
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION SW (240)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 7.4
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 55 2:00 AM
LOWEST 19 2:00 PM
AVERAGE 37
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 97 1986
2020
MINIMUM TEMPERATURE (F) 54 39 1892
SUNRISE AND SUNSET
AUGUST 18 2025........SUNRISE 6:25 AM MDT SUNSET 8:12 PM MDT
AUGUST 19 2025........SUNRISE 6:26 AM MDT SUNSET 8:10 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$