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CXUS55 KRIW 012012
CLMBPI

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
212 PM MDT WED OCT 01 2025

...................................

...THE BIG PINEY  WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1976 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             91   09/05/2020
 LOW               9   09/27/1996
                       09/21/1983
HIGHEST           83   09/03
                       09/04
LOWEST            29   09/23
AVG. MAXIMUM    72.8               69.7     3.1
AVG. MINIMUM    36.7               31.8     4.9
MEAN            54.8               50.8     4.0
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     8
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        3.17   1982
 MINIMUM           T   2018
TOTALS          0.51               0.64   -0.13     0.29
DAILY AVG.      0.02               0.02   -0.00
DAYS >= .01        9
DAYS >= .10        3
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.13   09/15 TO 09/15
 STORM TOTAL    0.13

DEGREE DAYS
HEATING TOTAL    299                428    -129
 SINCE 7/1       473                705    -232
COOLING TOTAL      0                  0       0
 SINCE 1/1        41                 30      11
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.1
RESULTANT WIND SPEED/DIRECTION   1/330
HIGHEST WIND SPEED/DIRECTION    36/320    DATE  09/07
HIGHEST GUST SPEED/DIRECTION    48/320    DATE  09/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.23
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     54

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              8     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       2     FOG W/VIS <= 1/4 MILE      0
HAZE                      3

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.

$$