276
CDUS45 KRIW 180045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT THU SEP 17 2026
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 17 2026
VALID TODAY AS OF 0600 PM LOCAL TIME.
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...............................................................
TEMPERATURE (F)
TODAY
MAXIMUM 77 3:03 PM 87 1937 74 3 68
2014
MINIMUM 54 6:08 AM 15 1965 44 10 45
AVERAGE 66 59 7 57
PRECIPITATION (IN)
TODAY T 0.81 1978 0.03 -0.03 T
MONTH TO DATE 0.04 0.42 -0.38 0.36
SINCE SEP 1 0.04 0.42 -0.38 0.36
SINCE JAN 1 6.40 9.86 -3.46 10.37
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 0 6 -6 8
MONTH TO DATE 21 71 -50 53
SINCE SEP 1 21 71 -50 53
SINCE JUL 1 24 110 -86 58
COOLING
TODAY 1 1 0 0
MONTH TO DATE 44 29 15 40
SINCE SEP 1 44 29 15 40
SINCE JAN 1 714 481 233 567
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 22 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 29 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.6
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62
LOWEST 35
AVERAGE 49
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 74 89 2014
MINIMUM TEMPERATURE (F) 44 10 1965
SUNRISE AND SUNSET
SEPTEMBER 17 2026.....SUNRISE 6:57 AM MDT SUNSET 7:21 PM MDT
SEPTEMBER 18 2026.....SUNRISE 6:58 AM MDT SUNSET 7:19 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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