089
CDUS45 KRIW 300045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT MON SEP 29 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 29 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 76 4:41 PM 90 2024 68 8 90
MINIMUM 47 6:31 AM 23 1985 39 8 54
AVERAGE 62 53 9 72
PRECIPITATION (IN)
TODAY 0.00 0.80 1905 0.05 -0.05 0.00
MONTH TO DATE 1.20 0.94 0.26 0.40
SINCE SEP 1 1.20 0.94 0.26 0.40
SINCE JAN 1 11.21 10.38 0.83 7.42
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.0 1.4 -1.4 0.0
SINCE SEP 1 0.0 1.4 -1.4 0.0
SINCE JUL 1 0.0 1.4 -1.4 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 3 12 -9 0
MONTH TO DATE 97 182 -85 75
SINCE SEP 1 97 182 -85 75
SINCE JUL 1 102 221 -119 93
COOLING
TODAY 0 0 0 7
MONTH TO DATE 42 31 11 83
SINCE SEP 1 42 31 11 83
SINCE JAN 1 569 483 86 644
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION SW (230)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SW (230)
AVERAGE WIND SPEED 4.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.1
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86
LOWEST 30
AVERAGE 58
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 67 86 1980
MINIMUM TEMPERATURE (F) 39 20 1985
SUNRISE AND SUNSET
SEPTEMBER 29 2025.....SUNRISE 7:10 AM MDT SUNSET 6:59 PM MDT
SEPTEMBER 30 2025.....SUNRISE 7:11 AM MDT SUNSET 6:57 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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