816
CDUS45 KRIW 230728
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT TUE SEP 23 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 22 2025
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)
YESTERDAY
MAXIMUM 61 10:02 AM 90 1958 71 -10 75
MINIMUM 45 10:15 PM 7 1895 42 3 36
AVERAGE 53 57 -4
PRECIPITATION (IN)
YESTERDAY 0.79 1.20 1910 0.05 0.74 0.00
MONTH TO DATE 1.15 0.62 0.53 0.40
SINCE SEP 1 1.15 0.62 0.53 0.40
SINCE JAN 1 11.16 10.06 1.10 7.42
SNOWFALL (IN)
YESTERDAY MM 5.5 2000 0.1 MM 0.0
MONTH TO DATE 0.0 0.7 -0.7 0.0
SINCE SEP 1 0.0 0.7 -0.7 0.0
SINCE JUL 1 0.0 0.7 -0.7 0.0
SNOW DEPTH MM
DEGREE DAYS
HEATING
YESTERDAY 12 9 3 9
MONTH TO DATE 76 110 -34 69
SINCE SEP 1 76 110 -34 69
SINCE JUL 1 81 149 -68 87
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 42 31 11 60
SINCE SEP 1 42 31 11 60
SINCE JAN 1 569 483 86 621
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WIND (MPH)
HIGHEST WIND SPEED 20 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 7.7
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.9
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
RAIN
LIGHT RAIN
FOG
RELATIVE HUMIDITY (PERCENT)
HIGHEST 97 1:00 PM
LOWEST 51 9:00 AM
AVERAGE 74
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THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 71 89 1905
MINIMUM TEMPERATURE (F) 42 19 1895
SUNRISE AND SUNSET
SEPTEMBER 23 2025.....SUNRISE 7:04 AM MDT SUNSET 7:10 PM MDT
SEPTEMBER 24 2025.....SUNRISE 7:05 AM MDT SUNSET 7:08 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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