Climatological Report (Daily)
Issued by NWS
Issued by NWS
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579
CDUS45 KRIW 120728
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
128 AM MDT SUN OCT 12 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR OCTOBER 11 2025...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2025
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 52 11:15 AM 64 2024 48 4 64
MINIMUM 31 11:59 PM -1 2019 24 7 30
AVERAGE 42 36 6 47
PRECIPITATION (IN)
YESTERDAY 0.75R 0.48 2021 0.06 0.69 0.00
MONTH TO DATE 1.71 0.61 1.10 0.00
SINCE SEP 1 3.17 2.18 0.99 1.43
SINCE JAN 1 14.88 17.44 -2.56 16.62
DEGREE DAYS
HEATING
YESTERDAY 23 29 -6 18
MONTH TO DATE 257 299 -42 215
SINCE SEP 1 741 887 -146 694
SINCE JUL 1 1257 1529 -272 1271
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 1 0 1 0
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 13 HIGHEST WIND DIRECTION W (270)
HIGHEST GUST SPEED 24 HIGHEST GUST DIRECTION W (260)
AVERAGE WIND SPEED 2.4
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 100 4:00 AM
LOWEST 83 11:00 AM
AVERAGE 92
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 47 63 2024
MINIMUM TEMPERATURE (F) 23 7 2001
2019
SUNRISE AND SUNSET
OCTOBER 12 2025.......SUNRISE 7:34 AM MDT SUNSET 6:42 PM MDT
OCTOBER 13 2025.......SUNRISE 7:35 AM MDT SUNSET 6:40 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$