Climatological Report (Daily)
Issued by NWS
Issued by NWS
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990
CDUS45 KRIW 210727
CLILND
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
127 AM MDT FRI AUG 21 2026
...................................
...THE LANDER WY CLIMATE SUMMARY FOR AUGUST 20 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 96 3:14 PM 99 2025 85 11 99
MINIMUM 57 6:16 AM 38 1964 53 4 59
AVERAGE 77 69 8
PRECIPITATION (IN)
YESTERDAY 0.00 0.62 1915 0.01 -0.01 0.00
MONTH TO DATE 0.35 0.35 0.00 0.05
SINCE JUN 1 1.43 2.02 -0.59 1.03
SINCE JAN 1 6.12 9.27 -3.15 9.59
SNOWFALL (IN)
YESTERDAY 0.0 0.0 2020 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
YESTERDAY 0 1 -1 0
MONTH TO DATE 3 6 -3 2
SINCE JUN 1 78 144 -66 92
SINCE JUL 1 3 20 -17 4
COOLING
YESTERDAY 12 5 7 14
MONTH TO DATE 158 132 26 154
SINCE JUN 1 569 405 164 478
SINCE JAN 1 583 410 173 486
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 30 HIGHEST WIND DIRECTION S (180)
HIGHEST GUST SPEED 36 HIGHEST GUST DIRECTION S (190)
AVERAGE WIND SPEED 6.7
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 44 7:00 AM
LOWEST 15 3:00 PM
AVERAGE 30
..........................................................
THE LANDER WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 85 98 1960
MINIMUM TEMPERATURE (F) 53 39 1966
1974
SUNRISE AND SUNSET
AUGUST 21 2026........SUNRISE 6:28 AM MDT SUNSET 8:07 PM MDT
AUGUST 22 2026........SUNRISE 6:29 AM MDT SUNSET 8:06 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$