909
CDUS45 KRIW 170045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT TUE SEP 16 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 16 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 68 3:06 PM 91 2000 75 -7 84
MINIMUM 38 6:13 AM 23 1965 45 -7 49
AVERAGE 53 60 -7 67
PRECIPITATION (IN)
TODAY 0.00 0.99 1923 0.03 -0.03 0.00
MONTH TO DATE 0.08 0.39 -0.31 0.36
SINCE SEP 1 0.08 0.39 -0.31 0.36
SINCE JAN 1 10.09 9.83 0.26 7.38
SNOWFALL (IN)
TODAY MM 0.0 MM 0.0
MONTH TO DATE 0.0 0.3 -0.3 0.0
SINCE SEP 1 0.0 0.3 -0.3 0.0
SINCE JUL 1 0.0 0.3 -0.3 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 12 6 6 0
MONTH TO DATE 45 65 -20 24
SINCE SEP 1 45 65 -20 24
SINCE JUL 1 50 104 -54 42
COOLING
TODAY 0 1 -1 2
MONTH TO DATE 40 28 12 60
SINCE SEP 1 40 28 12 60
SINCE JAN 1 567 480 87 621
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 9 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 14 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 3.7
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 76
LOWEST 36
AVERAGE 56
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 87 1937
2014
MINIMUM TEMPERATURE (F) 44 15 1965
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 6:56 AM MDT SUNSET 7:22 PM MDT
SEPTEMBER 17 2025.....SUNRISE 6:57 AM MDT SUNSET 7:20 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page