Climatological Report (Daily)
Issued by NWS
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CDUS45 KRIW 210732
CLIBPI
CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
132 AM MDT MON SEP 21 2026
...................................
...THE BIG PINEY WY CLIMATE SUMMARY FOR SEPTEMBER 20 2026...
CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1976 TO 2026
WEATHER ITEM OBSERVED TIME RECORD YEAR NORMAL DEPARTURE LAST
VALUE (LST) VALUE VALUE FROM YEAR
NORMAL
...................................................................
TEMPERATURE (F)
YESTERDAY
MAXIMUM 62 1:15 PM 80 2016 68 -6 77
MINIMUM 34 5:26 AM 18 1978 31 3 45
AVERAGE 48 49 -1
PRECIPITATION (IN)
YESTERDAY 0.00 0.41 2019 0.02 -0.02 0.00
MONTH TO DATE 0.78 0.41 0.37 0.33
SINCE SEP 1 0.78 0.41 0.37 0.33
SINCE JAN 1 5.14 6.32 -1.18 6.19
DEGREE DAYS
HEATING
YESTERDAY 17 16 1 4
MONTH TO DATE 194 248 -54 170
SINCE SEP 1 194 248 -54 170
SINCE JUL 1 311 524 -213 344
COOLING
YESTERDAY 0 0 0 0
MONTH TO DATE 0 0 0 0
SINCE SEP 1 0 0 0 0
SINCE JAN 1 163 30 133 41
...................................................................
WIND (MPH)
HIGHEST WIND SPEED 16 HIGHEST WIND DIRECTION N (340)
HIGHEST GUST SPEED 20 HIGHEST GUST DIRECTION N (340)
AVERAGE WIND SPEED 5.9
SKY COVER
POSSIBLE SUNSHINE MM
AVERAGE SKY COVER 0.4
WEATHER CONDITIONS
THE FOLLOWING WEATHER WAS RECORDED YESTERDAY.
NO SIGNIFICANT WEATHER WAS OBSERVED.
RELATIVE HUMIDITY (PERCENT)
HIGHEST 96 4:00 AM
LOWEST 45 3:00 PM
AVERAGE 71
..........................................................
THE BIG PINEY WY CLIMATE NORMALS FOR TODAY
NORMAL RECORD YEAR
MAXIMUM TEMPERATURE (F) 68 78 2015
MINIMUM TEMPERATURE (F) 30 9 1983
SUNRISE AND SUNSET
SEPTEMBER 21 2026.....SUNRISE 7:07 AM MDT SUNSET 7:19 PM MDT
SEPTEMBER 22 2026.....SUNRISE 7:08 AM MDT SUNSET 7:17 PM MDT
- INDICATES NEGATIVE NUMBERS.
R INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T INDICATES TRACE AMOUNT.
$$