Climatological Report (Daily)
Issued by NWS
Issued by NWS
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071
CDUS45 KRIW 200729
CLIBYG
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
129 AM MDT SAT SEP 20 2025
...................................
...THE BUFFALO WY CLIMATE SUMMARY FOR SEPTEMBER 19 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 72 2:42 PM 94 2010 71 1 74
MINIMUM 45 3:43 AM 37 2017 46 -1 48
AVERAGE 59 58 1 61
PRECIPITATION (IN)
YESTERDAY 0.00 0.35 2000 0.05 -0.05 0.00
MONTH TO DATE 0.67 0.68 -0.01 0.18
SINCE SEP 1 0.67 0.68 -0.01 0.18
SINCE JAN 1 9.02 10.52 -1.50 7.77
DEGREE DAYS
HEATING
YESTERDAY 6 8 -2 4
MONTH TO DATE 69 100 -31 35
SINCE SEP 1 69 100 -31 35
SINCE JUL 1 110 157 -47 112
COOLING
YESTERDAY 0 1 -1 0
MONTH TO DATE 31 49 -18 95
SINCE SEP 1 31 49 -18 95
SINCE JAN 1 476 517 -41 611
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 12 HIGHEST WIND DIRECTION N (360)
HIGHEST GUST SPEED 16 HIGHEST GUST DIRECTION N (360)
AVERAGE WIND SPEED 4.8
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 83 2:00 AM
LOWEST 34 2:00 PM
AVERAGE 59
..........................................................
THE BUFFALO WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 70 81 2007
2024
MINIMUM TEMPERATURE (F) 46 34 2000
SUNRISE AND SUNSET
SEPTEMBER 20 2025.....SUNRISE 6:52 AM MDT SUNSET 7:07 PM MDT
SEPTEMBER 21 2025.....SUNRISE 6:53 AM MDT SUNSET 7:05 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$