Climatological Report (Daily)
Issued by NWS
Issued by NWS
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CDUS45 KRIW 170732
CLIP60
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT FRI OCT 17 2025
...................................
...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR OCTOBER 16 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 42 1:38 PM 63 2024 45 -3 63
MINIMUM 33 11:59 PM 13 2018 22 11 27
AVERAGE 38 34 4 45
PRECIPITATION (IN)
YESTERDAY 0.02 0.58 2016 0.06 -0.04 0.00
MONTH TO DATE 2.43 0.91 1.52 0.00
SINCE SEP 1 3.89 2.48 1.41 1.43
SINCE JAN 1 15.60 17.74 -2.14 16.62
DEGREE DAYS
HEATING
YESTERDAY 27 31 -4 20
MONTH TO DATE 401 452 -51 312
SINCE SEP 1 885 1040 -155 791
SINCE JUL 1 1401 1682 -281 1368
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 12 HIGHEST WIND DIRECTION NW (300)
HIGHEST GUST SPEED 23 HIGHEST GUST DIRECTION NW (310)
AVERAGE WIND SPEED 4.1
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 3:00 AM
LOWEST 70 3:00 PM
AVERAGE 85
..........................................................
THE LAKE YELLOWSTONE WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 45 64 2015
MINIMUM TEMPERATURE (F) 22 12 1999
SUNRISE AND SUNSET
OCTOBER 17 2025.......SUNRISE 7:40 AM MDT SUNSET 6:33 PM MDT
OCTOBER 18 2025.......SUNRISE 7:41 AM MDT SUNSET 6:32 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$