Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 021643
CLMWRL

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1021 AM MDT MON OCT 02 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR WORLAND MUNICIPAL AIRPORT
FOR THE MONTH OF SEPTEMBER 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2023 WILL BE
AVAILABLE APPROXIMATELY IN 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...WORLAND WAS WARMER AND WETTER THAN NORMAL IN SEPTEMBER...

AVERAGE TEMPERATURE FOR WORLAND IN SEPTEMBER WAS 61.6 DEGREES WHICH
WAS 2.3 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH WAS
91 DEGREES ON THE 1ST AND 3RD. THE COLDEST READING FOR THE MONTH WAS
36 DEGREES ON THE 25TH AND 29TH. NO TEMPERATURE RECORDS WERE BROKEN.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.73 INCHES...WHICH WAS 186
PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH WAS
ON THE 4TH WHEN 1.39 INCHES FELL. THIS BROKE THE 1999 RECORD OF 0.58
INCHES. THE HIGHEST WIND GUST WAS 39 MPH FROM THE NORTHWEST ON THE
13TH.

...THE WORLAND WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1947 TO 2023

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   09/01
                       09/03
LOWEST            36   09/25
                       09/29
AVG. MAXIMUM    78.5               76.2     2.3
AVG. MINIMUM    44.8               42.4     2.4
MEAN            61.6               59.3     2.3
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          1.73               0.93    0.80     0.94
DAILY AVG.      0.06               0.03    0.03
DAYS >= .01        6
DAYS >= .10        3
DAYS >= .50        1
DAYS >= 1.00       1
GREATEST
 24 HR. TOTAL   1.39   09/04 TO 09/04
 STORM TOTAL    1.39

DEGREE DAYS
HEATING TOTAL    116                202     -86
 SINCE 7/1       131                240    -109
COOLING TOTAL     23                 31      -8
 SINCE 1/1       440                528     -88
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.1
RESULTANT WIND SPEED/DIRECTION   1/100
HIGHEST WIND SPEED/DIRECTION    28/200    DATE  09/01
                                28/330          09/13
HIGHEST GUST SPEED/DIRECTION    39/330    DATE  09/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.15
NUMBER OF DAYS FAIR           27
NUMBER OF DAYS PC              2
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     57

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       4
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       5     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.

LOOKING AHEAD TO OCTOBER 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 37 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 53
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 23 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.77 INCHES.

$$


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