Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 010035
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
635 PM MDT SUN AUG 31 2025
...................................
...THE LANDER WY CLIMATE SUMMARY FOR AUGUST 31 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 83 3:10 PM 95 1954 82 1 88
MINIMUM 51 6:18 AM 29 1908 50 1 52
AVERAGE 67 66 1 70
PRECIPITATION (IN)
TODAY 0.00 0.89 1909 0.02 -0.02 0.00
MONTH TO DATE 0.47 0.52 -0.05 0.74
SINCE JUN 1 1.45 2.19 -0.74 1.16
SINCE JAN 1 10.01 9.44 0.57 7.02
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 2 -2 0
MONTH TO DATE 3 23 -20 12
SINCE JUN 1 93 161 -68 53
SINCE JUL 1 5 37 -32 18
COOLING
TODAY 2 3 -1 5
MONTH TO DATE 195 174 21 196
SINCE JUN 1 519 447 72 561
SINCE JAN 1 527 452 75 561
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION E (70)
HIGHEST GUST SPEED 18 HIGHEST GUST DIRECTION SE (120)
AVERAGE WIND SPEED 4.2
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED TODAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 71
LOWEST 18
AVERAGE 45
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TOMORROW
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 81 98 2022
MINIMUM TEMPERATURE (F) 50 33 1905
SUNRISE AND SUNSET
AUGUST 31 2025........SUNRISE 6:39 AM MDT SUNSET 7:50 PM MDT
SEPTEMBER 1 2025.....SUNRISE 6:40 AM MDT SUNSET 7:49 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$