015
CDUS45 KRIW 160731
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
131 AM MDT TUE SEP 16 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 15 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 70 11:59 AM 91 2000 75 -5 85
MINIMUM 47 11:50 PM 28 1915 45 2 46
AVERAGE 59 60 -1
PRECIPITATION (IN)
YESTERDAY 0.05 0.50 2022 0.03 0.02 0.00
MONTH TO DATE 0.08 0.36 -0.28 0.36
SINCE SEP 1 0.08 0.36 -0.28 0.36
SINCE JAN 1 10.09 9.80 0.29 7.38
SNOWFALL (IN)
YESTERDAY 0.0 0.7 1965 0.1 -0.1 0.0
MONTH TO DATE 0.0 0.3 -0.3 0.0
SINCE SEP 1 0.0 0.3 -0.3 0.0
SINCE JUL 1 0.0 0.3 -0.3 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 6 6 0 0
MONTH TO DATE 33 59 -26 24
SINCE SEP 1 33 59 -26 24
SINCE JUL 1 38 98 -60 42
COOLING
YESTERDAY 0 1 -1 1
MONTH TO DATE 40 27 13 58
SINCE SEP 1 40 27 13 58
SINCE JAN 1 567 479 88 619
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 32 HIGHEST WIND DIRECTION W (260)
HIGHEST GUST SPEED 43 HIGHEST GUST DIRECTION W (250)
AVERAGE WIND SPEED 7.5
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.2
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
THUNDERSTORM
LIGHT RAIN
RELATIVE HUMIDITY (PERCENT)
HIGHEST 62 2:00 PM
LOWEST 29 4:00 AM
AVERAGE 46
......................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 75 91 2000
MINIMUM TEMPERATURE (F) 45 23 1965
SUNRISE AND SUNSET
SEPTEMBER 16 2025.....SUNRISE 6:56 AM MDT SUNSET 7:22 PM MDT
SEPTEMBER 17 2025.....SUNRISE 6:57 AM MDT SUNSET 7:20 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page