Climatological Report (Monthly)
Issued by NWS

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057
CXUS55 KRIW 011138
CLMWRL

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
216 AM MDT SAT OCT 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR WORLAND MUNICIPAL AIRPORT
FOR THE MONTH OF SEPTEMBER 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2016 WILL BE
AVAILABLE APPROXIMATELY IN NOVEMBER 2016 FROM THE NATIONAL CENTER FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCEI.NOAA.GOV/OL/
CLIMATEDATA.HTML). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON
THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...WORLAND WAS MUCH WETTER THAN NORMAL IN SEPTEMBER...

THE AVERAGE TEMPERATURE FOR WORLAND IN SEPTEMBER WAS 59.3
DEGREES...WHICH WAS 0.7 DEGREES ABOVE NORMAL. THE WARMEST
READING OF THE MONTH WAS 96 DEGREES ON THE 1ST. THE COLDEST READING
WAS 35 DEGREES ON THE 10TH. NO TEMPERATURE RECORDS WERE SET DURING
THE MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS A 1.97 OF AN INCH...WHICH WAS
232 PERCENT OF NORMAL. THIS MAKES IT THE 3RD WETTEST SEPTEMBER ON
RECORD. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON THE 23RD AND
24TH...WHEN 1.19 OF AN INCH FELL. 0.98 OF AN INCH OF PRECIPITATION
FELL ON THE 24TH...BREAKING THE PREVIOUS RECORD OF 0.51...SET IN
1986. THE HIGHEST WIND GUST WAS 47 MPH ON THE 11TH.

...THE WORLAND WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1947 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             100   09/06/1978
 LOW               15   09/25/1984
HIGHEST            96   09/01
LOWEST             35   09/10
AVG. MAXIMUM     74.4              74.5    -0.1
AVG. MINIMUM     44.3              42.7     1.6
MEAN             59.3              58.6     0.7
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
                        1979
TOTALS           1.97              0.85    1.12
DAILY AVG.       0.07
DAYS >= .01         7
DAYS >= .10         3
DAYS >= .50         2
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    1.19   09/23 TO 09/24

DEGREE_DAYS
HEATING TOTAL     185               221     -36
 SINCE 7/1        216               257     -41
COOLING TOTAL      25                29      -4
 SINCE 1/1        690               535     155
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.8
RESULTANT WIND SPEED/DIRECTION   0/340
HIGHEST WIND SPEED/DIRECTION    38/310    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    47/320    DATE  09/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           21
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       5
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      0
HAZE                      2

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

LOOKING AHEAD TO OCTOBER 2016...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 71 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 39 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 54 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 26 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 0.69 INCHES.

$$



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