Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 010847
CLMBYG

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE JOHNSON COUNTY
AIRPORT NEAR BUFFALO 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 CLIMATIC
DATA CENTER (HTTP://WWW.NCDC.NOAA.GOV/OL/CLIMATEDATA.HTML).
UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT
HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...BUFFALO WAS SLIGHTLY WARMER AND MUCH WETTER THAN NORMAL FOR
SEPTEMBER...

THE AVERAGE TEMPERATURE FOR BUFFALO IN SEPTEMBER WAS 60.2
DEGREES...WHICH WAS 2.0 DEGREES ABOVE NORMAL. THE WARMEST READING OF
THE MONTH WAS 91 DEGREES ON THE 2ND. THE COLDEST READING WAS 38 ON
THE 12TH AND THE 13TH. NO TEMPERATURE RECORDS WERE SET DURING
THE MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 3.24 INCHES...WHICH WAS 247
PERCENT OF NORMAL. THIS MAKES IT THE 2ND WETTEST SEPTEMBER ON
RECORD. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 23RD AND
24TH...WHEN 1.77 OF AN INCH OF PRECIPITATION FELL. BOTH DAYS SET
NEW PRECIPITATION RECORDS. 0.65 OF AN INCH OF PRECIPITATION FELL ON
THE 23RD...BREAKING THE PREVIOUS RECORD OF 0.09...SET IN 2000. 1.29
OF AN INCH OF PRECIPITATION FELL ON THE 24TH...BREAKING THE PREVIOUS
RECORD OF 0.16...SET IN 2005. 0.30 OF AN INCH OF PRECIPITATION ALSO
FELL ON THE 9TH...BREAKING THE PREVIOUS RECORD OF 0.22...SET IN 2007.
THE HIGHEST WIND GUST WAS 60 MPH ON THE 11TH.

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/04/1998
 LOW               19   09/12/2014
HIGHEST            91   09/02
LOWEST             38   09/13
                        09/12
AVG. MAXIMUM     71.5              71.4     0.1
AVG. MINIMUM     48.9              45.0     3.9
MEAN             60.2              58.2     2.0
DAYS MAX >= 90      2
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.34   2013
 MINIMUM         0.11   2015
TOTALS           3.24              1.31    1.93
DAILY AVG.       0.11
DAYS >= .01        14
DAYS >= .10         7
DAYS >= .50         2
DAYS >= 1.00        1
GREATEST
 24 HR. TOTAL    1.77   09/23 TO 09/24

DEGREE_DAYS
HEATING TOTAL     172               249     -77
 SINCE 7/1        211               314    -103
COOLING TOTAL      36                45      -9
 SINCE 1/1        630               491     139
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.1
HIGHEST WIND SPEED/DIRECTION    46/320    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    60/320    DATE  09/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          6

AVERAGE RH (PERCENT)     55

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       7
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      3
HAZE                      1

-  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 67 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 43 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 52 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 30. THE AVERAGE
MONTHLY PRECIPITATION IS 0.94 INCHES.

$$


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