Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 010910
CLMBPI

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
254 AM MDT SUN OCT 1 2017

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE MILEY MEMORIAL FIELD
IN BIG PINEY FOR THE MONTH OF SEPTEMBER 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2017 WILL BE
AVAILABLE APPROXIMATELY IN NOVEMBER 2017 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

...BIG PINEY WAS MUCH WETTER THAN NORMAL IN SEPTEMBER...

THE AVERAGE TEMPERATURE FOR BIG PINEY IN SEPTEMBER WAS 50.5
DEGREES...WHICH WAS 0.7 DEGREES ABOVE NORMAL. THE WARMEST READING
FOR THE MONTH WAS 89 DEGREES ON THE 3RD. THIS BROKE THE DAILY RECORD
OF 85...SET IN 2013...AND WAS ALSO THE WARMEST SEPTEMBER DAY ON
RECORD. A RECORD HIGH OF 87 DEGREES WAS SET ON THE 2ND...BREAKING
THE PREVIOUS RECORD OF 84...SET IN 2007. A RECORD HIGH OF 88 DEGREES
WAS SET ON THE 4TH...BREAKING THE PREVIOUS RECORD OF 85...SET IN
1998. A RECORD HIGH OF 81 DEGREES WAS SET ON THE 11TH...TYING THE
PREVIOUS RECORD SET IN 2015. THE COLDEST READING WAS 21 DEGREES ON
THE 26TH.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.72 INCHES...WHICH WAS 221
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON
THE 24TH...WHEN 0.44 INCHES FELL...SETTING A NEW RECORD. THIS BROKE
THE PREVIOUS RECORD OF 0.43 INCHES...SET IN 2007. THE HIGHEST WIND
GUST WAS 41 MPH ON THE 19TH.

...THE BIG PINEY  WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1976 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              89   09/03/2017
 LOW                9   09/27/1996
                        09/21/1983
HIGHEST            89R  09/03
LOWEST             21   09/26
AVG. MAXIMUM     67.4              68.1    -0.7
AVG. MINIMUM     33.6              31.4     2.2
MEAN             50.5              49.8     0.7
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32     13
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.17   1982
 MINIMUM         0.04   2010
                        2009
TOTALS           1.72              0.78    0.94
DAILY AVG.       0.06
DAYS >= .01        12
DAYS >= .10         5
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.44   09/24 TO 09/24

DEGREE_DAYS
HEATING TOTAL     426               458     -32
 SINCE 7/1        613               751    -138
COOLING TOTAL       0                 0       0
 SINCE 1/1         27                35      -8
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
HIGHEST WIND SPEED/DIRECTION    32/280    DATE  09/19
HIGHEST GUST SPEED/DIRECTION    41/290    DATE  09/19

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                3     RAIN                       6
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                3     SLEET                      0
FOG                      11     FOG W/VIS <= 1/4 MILE      0
HAZE                      4

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

LOOKING AHEAD TO OCTOBER 2017...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 62 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 26 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 48 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 16. THE AVERAGE
MONTHLY PRECIPITATION IS 0.53 INCHES.

$$



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