220
CDUS45 KRIW 170041
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
641 PM MDT SAT AUG 16 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR AUGUST 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 89 2:00 PM 95 2007 86 3 88
2021
2023
MINIMUM 64 6:53 AM 33 1893 54 10 50
AVERAGE 77 70 7 69
PRECIPITATION (IN)
TODAY 0.04 0.32 1992 0.01 0.03 0.00
MONTH TO DATE 0.05 0.29 -0.24 0.45
SINCE JUN 1 1.03 1.96 -0.93 0.87
SINCE JAN 1 9.59 9.21 0.38 6.73
SNOWFALL (IN)
TODAY 0.0 0.0 0.0 0.0
MONTH TO DATE 0.0 0.0 0.0 0.0
SINCE JUN 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.0 0.0 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
TODAY 0 1 -1 0
MONTH TO DATE 2 2 0 1
SINCE JUN 1 92 140 -48 42
SINCE JUL 1 4 16 -12 7
COOLING
TODAY 12 6 6 4
MONTH TO DATE 117 111 6 104
SINCE JUN 1 441 384 57 469
SINCE JAN 1 449 389 60 469
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 33 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION NW (300)
AVERAGE WIND SPEED 7.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
THUNDERSTORM
RAIN
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 54
LOWEST 21
AVERAGE 38
......................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 86 96 2013
2020
MINIMUM TEMPERATURE (F) 54 38 2009
SUNRISE AND SUNSET
AUGUST 16 2025........SUNRISE 6:23 AM MDT SUNSET 8:15 PM MDT
AUGUST 17 2025........SUNRISE 6:24 AM MDT SUNSET 8:13 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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