Climatological Report (Daily)
Issued by NWS
Issued by NWS
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798
CDUS45 KRIW 130727
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT SAT SEP 13 2025
...................................
...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 12 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 74 3:04 PM 94 1990 77 -3 72
MINIMUM 50 10:19 PM 26 1902 46 4 44
AVERAGE 62 61 1
PRECIPITATION (IN)
YESTERDAY 0.01 0.69 2013 0.03 -0.02 T
MONTH TO DATE 0.03 0.27 -0.24 0.36
SINCE SEP 1 0.03 0.27 -0.24 0.36
SINCE JAN 1 10.04 9.71 0.33 7.38
SNOWFALL (IN)
YESTERDAY 0.0 1.0 1970 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.2 -0.2 0.0
SINCE SEP 1 0.0 0.2 -0.2 0.0
SINCE JUL 1 0.0 0.2 -0.2 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 3 5 -2 7
MONTH TO DATE 14 43 -29 11
SINCE SEP 1 14 43 -29 11
SINCE JUL 1 19 82 -63 29
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 40 24 16 57
SINCE SEP 1 40 24 16 57
SINCE JAN 1 567 476 91 618
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION NW (330)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION NW (320)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
RELATIVE HUMIDITY (PERCENT)
HIGHEST 77 10:00 PM
LOWEST 30 3:00 PM
AVERAGE 54
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 76 89 2015
MINIMUM TEMPERATURE (F) 46 25 1914
SUNRISE AND SUNSET
SEPTEMBER 13 2025.....SUNRISE 6:53 AM MDT SUNSET 7:28 PM MDT
SEPTEMBER 14 2025.....SUNRISE 6:54 AM MDT SUNSET 7:26 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$