219
CDUS45 KRIW 190045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU SEP 18 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 18 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 77 4:17 PM 89 2014 74 3 70
MINIMUM 41 5:54 AM 10 1965 44 -3 43
AVERAGE 59 59 0 57
PRECIPITATION (IN)
TODAY 0.00 1.20 1996 0.03 -0.03 0.00
MONTH TO DATE 0.36 0.45 -0.09 0.40
SINCE SEP 1 0.36 0.45 -0.09 0.40
SINCE JAN 1 10.37 9.89 0.48 7.42
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.0 0.4 -0.4 0.0
SINCE SEP 1 0.0 0.4 -0.4 0.0
SINCE JUL 1 0.0 0.4 -0.4 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 6 7 -1 8
MONTH TO DATE 59 78 -19 38
SINCE SEP 1 59 78 -19 38
SINCE JUL 1 64 117 -53 56
COOLING
TODAY 0 1 -1 0
MONTH TO DATE 40 30 10 60
SINCE SEP 1 40 30 10 60
SINCE JAN 1 567 482 85 621
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 15 HIGHEST GUST DIRECTION E (110)
AVERAGE WIND SPEED 4.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86
LOWEST 20
AVERAGE 53
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2010
MINIMUM TEMPERATURE (F) 44 24 1965
SUNRISE AND SUNSET
SEPTEMBER 18 2025.....SUNRISE 6:58 AM MDT SUNSET 7:19 PM MDT
SEPTEMBER 19 2025.....SUNRISE 6:59 AM MDT SUNSET 7:17 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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