699
CDUS45 KRIW 200734
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
134 AM MDT SUN SEP 20 2026
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 19 2026
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)
YESTERDAY
MAXIMUM 69 MM 90 2010 73 -4 77
MINIMUM 46 MM 24 1965 44 2 45
AVERAGE 58 58 0
PRECIPITATION (IN)
YESTERDAY 1.64R 0.72 1999 0.04 1.60 0.00
MONTH TO DATE 1.76 0.49 1.27 0.36
SINCE SEP 1 1.76 0.49 1.27 0.36
SINCE JAN 1 8.12 9.93 -1.81 10.37
SNOWFALL (IN)
YESTERDAY 0.0 3.6 1957 0.0 0.0 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 0
DEGREE DAYS
HEATING
YESTERDAY 7 7 0 4
MONTH TO DATE 30 85 -55 63
SINCE SEP 1 30 85 -55 63
SINCE JUL 1 33 124 -91 68
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 43 31 12 40
SINCE SEP 1 43 31 12 40
SINCE JAN 1 713 483 230 567
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 23 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 32 HIGHEST GUST DIRECTION N (20)
AVERAGE WIND SPEED 7.1
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
HEAVY RAIN
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 6:00 PM
LOWEST 49 3:00 PM
AVERAGE 73
......................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 88 1956
2016
MINIMUM TEMPERATURE (F) 43 23 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.
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