Climatological Report (Daily)
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Issued by NWS
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CDUS45 KRIW 110813
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
213 AM MDT FRI SEP 11 2026
...................................
...THE LANDER WY CLIMATE SUMMARY FOR SEPTEMBER 10 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1891 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 87 3:27 PM 93 2021 78 9 89
MINIMUM 45 4:37 AM 30 2020 47 -2 48
AVERAGE 66 62 4
PRECIPITATION (IN)
YESTERDAY 0.00 1.07 1950 0.02 -0.02 T
MONTH TO DATE T 0.21 -0.21 0.02
SINCE SEP 1 T 0.21 -0.21 0.02
SINCE JAN 1 6.36 9.65 -3.29 10.03
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 0.0 0.0 0.0
MONTH TO DATE 0.0 0.1 -0.1 0.0
SINCE SEP 1 0.0 0.1 -0.1 0.0
SINCE JUL 1 0.0 0.1 -0.1 0.0
SNOW DEPTH 0
DEGREE DAYS
HEATING
YESTERDAY 0 4 -4 0
MONTH TO DATE 2 33 -31 11
SINCE SEP 1 2 33 -31 11
SINCE JUL 1 5 72 -67 16
COOLING
YESTERDAY 1 2 -1 4
MONTH TO DATE 35 22 13 33
SINCE SEP 1 35 22 13 33
SINCE JAN 1 705 474 231 560
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 18 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 27 HIGHEST GUST DIRECTION W (280)
AVERAGE WIND SPEED 6.2
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 27 12:00 AM
LOWEST 9 2:00 PM
AVERAGE 18
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 77 88 1919
1990
MINIMUM TEMPERATURE (F) 46 26 1898
SUNRISE AND SUNSET
SEPTEMBER 11 2026.....SUNRISE 6:50 AM MDT SUNSET 7:32 PM MDT
SEPTEMBER 12 2026.....SUNRISE 6:52 AM MDT SUNSET 7:30 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$