291
CDUS45 KRIW 220045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN SEP 21 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 21 2025
VALID TODAY AS OF 0600 PM LOCAL TIME.
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)
TODAY
MAXIMUM 80 12:28 PM 87 1905 72 8 64
MINIMUM 48 5:38 AM 25 1983 43 5 44
AVERAGE 64 57 7 54
PRECIPITATION (IN)
TODAY T 1.63 1895 0.04 -0.04 0.00
MONTH TO DATE 0.36 0.57 -0.21 0.40
SINCE SEP 1 0.36 0.57 -0.21 0.40
SINCE JAN 1 10.37 10.01 0.36 7.42
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.0 0.6 -0.6 0.0
SINCE SEP 1 0.0 0.6 -0.6 0.0
SINCE JUL 1 0.0 0.6 -0.6 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 1 8 -7 11
MONTH TO DATE 64 101 -37 60
SINCE SEP 1 64 101 -37 60
SINCE JUL 1 69 140 -71 78
COOLING
TODAY 0 0 0 0
MONTH TO DATE 42 31 11 60
SINCE SEP 1 42 31 11 60
SINCE JAN 1 569 483 86 621
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 35 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 46 HIGHEST GUST DIRECTION W (270)
AVERAGE WIND SPEED 6.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
HAZE
RELATIVE HUMIDITY (PERCENT)
HIGHEST 57
LOWEST 19
AVERAGE 38
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 90 1958
MINIMUM TEMPERATURE (F) 42 7 1895
SUNRISE AND SUNSET
SEPTEMBER 21 2025.....SUNRISE 7:02 AM MDT SUNSET 7:13 PM MDT
SEPTEMBER 22 2025.....SUNRISE 7:03 AM MDT SUNSET 7:11 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
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