Climatological Report (Daily)
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CDUS45 KRIW 210045
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
645 PM MDT SUN SEP 20 2026
...................................
...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 20 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 63 2:52 PM 88 1956 73 -10 80
2016
MINIMUM 46 7:16 AM 23 1983 43 3 53
AVERAGE 55 58 -3 67
PRECIPITATION (IN)
TODAY 0.32 1.42 1989 0.04 0.28 0.00
MONTH TO DATE 2.08 0.53 1.55 0.36
SINCE SEP 1 2.08 0.53 1.55 0.36
SINCE JAN 1 8.44 9.97 -1.53 10.37
SNOWFALL (IN)
TODAY MM 0.1 MM 0.0
MONTH TO DATE 0.0 0.5 -0.5 0.0
SINCE SEP 1 0.0 0.5 -0.5 0.0
SINCE JUL 1 0.0 0.5 -0.5 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
TODAY 10 8 2 0
MONTH TO DATE 40 93 -53 63
SINCE SEP 1 40 93 -53 63
SINCE JUL 1 43 132 -89 68
COOLING
TODAY 0 0 0 2
MONTH TO DATE 43 31 12 42
SINCE SEP 1 43 31 12 42
SINCE JAN 1 713 483 230 569
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 15 HIGHEST WIND DIRECTION E (90)
HIGHEST GUST SPEED 19 HIGHEST GUST DIRECTION E (80)
AVERAGE WIND SPEED 6.3
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.7
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97
LOWEST 56
AVERAGE 77
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 72 87 1905
MINIMUM TEMPERATURE (F) 43 25 1983
SUNRISE AND SUNSET
SEPTEMBER 20 2026.....SUNRISE 7:00 AM MDT SUNSET 7:16 PM MDT
SEPTEMBER 21 2026.....SUNRISE 7:01 AM MDT SUNSET 7:14 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$