733
CDUS45 KRIW 190730
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
130 AM MDT FRI SEP 19 2025
...............................
..THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 18 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 77 4:17 PM 89 2014 74 3 70
MINIMUM 41 5:54 AM 10 1965 44 -3 43
AVERAGE 59 59 0
PRECIPITATION (IN)
YESTERDAY 0.00 1.20 1996 0.03 -0.03 0.00
MONTH TO DATE 0.36 0.45 -0.09 0.40
SINCE SEP 1 0.36 0.45 -0.09 0.40
SINCE JAN 1 10.37 9.89 0.48 7.42
SNOWFALL (IN)
YESTERDAY 0.0 3.0 1978 0.1 -0.1 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 6 7 -1 8
MONTH TO DATE 59 78 -19 38
SINCE SEP 1 59 78 -19 38
SINCE JUL 1 64 117 -53 56
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 40 30 10 60
SINCE SEP 1 40 30 10 60
SINCE JAN 1 567 482 85 621
...............................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (250)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION SW (240)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.0
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 86 6:00 AM
LOWEST 20 4:00 PM
AVERAGE 53
......................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 73 90 2010
MINIMUM TEMPERATURE (F) 44 24 1965
SUNRISE AND SUNSET
SEPTEMBER 19 2025.....SUNRISE 6:59 AM MDT SUNSET 7:17 PM MDT
SEPTEMBER 20 2025.....SUNRISE 7:00 AM MDT SUNSET 7:15 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