271
CXUS55 KRIW 012012
CLMWRL

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

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

...THE WORLAND WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2025...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1947 TO 2025

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH            102   09/04/2022
 LOW              15   09/25/1984
HIGHEST           91   09/02
LOWEST            37   09/06
AVG. MAXIMUM    80.6               76.2     4.4
AVG. MINIMUM    45.2               42.4     2.8
MEAN            62.9               59.3     3.6
DAYS MAX >= 90     2
DAYS MAX <= 32     0
DAYS MIN <= 32     0
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        2.63   2013
 MINIMUM           T   2012
TOTALS          0.45               0.93   -0.48     0.23
DAILY AVG.      0.02               0.03   -0.01
DAYS >= .01        4
DAYS >= .10        2
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.24   09/22 TO 09/22
 STORM TOTAL    0.24

DEGREE DAYS
HEATING TOTAL     85                202    -117
 SINCE 7/1        91                240    -149
COOLING TOTAL     27                 31      -4
 SINCE 1/1       561                528      33
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
RESULTANT WIND SPEED/DIRECTION   0/180
HIGHEST WIND SPEED/DIRECTION    29/330    DATE  09/04
HIGHEST GUST SPEED/DIRECTION    45/340    DATE  09/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.11
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     49

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       1
LIGHT RAIN                6     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     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.

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