Climatological Report (Monthly)
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CXUS55 KRIW 012223
CLMBYG

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
423 PM MDT MON OCT 1 2018

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE JOHNSON COUNTY
AIRPORT NEAR BUFFALO FOR THE MONTH OF SEPTEMBER 2018...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2018 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

...SEPTEMBER WAS SLIGHTLY WARMER AND SLIGHTLY DRIER THAN NORMAL IN
BUFFALO...

THE AVERAGE TEMPERATURE FOR BUFFALO IN SEPTEMBER WAS 59.8 DEGREES.
THIS WAS 1.6 DEGREES ABOVE NORMAL...MAKING IT THE 11TH WARMEST
SEPTEMBER ON RECORD. THE WARMEST READING OF THE MONTH WAS 94 DEGREES
ON THE 15TH...WHICH BROKE THE PREVIOUS RECORD HIGH OF 92 DEGREES SET
IN 2000. THE COLDEST DAY WAS THE 28TH WITH 32 DEGREES.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.97 INCHES...WHICH WAS 74
PERCENT OF NORMAL. THIS MAKES IT THE 10TH DRIEST SEPTEMBER ON RECORD.
THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON THE 27TH...WHEN 0.34
INCHES FELL. THIS DID NOT BREAK A RECORD, BUT A RECORD WAS BROKEN ON
THE 28TH WHEN 0.20 FELL, BREAKING THE 2012 RECORD OF 0.08.
THE HIGHEST WIND GUST WAS 53 MPH ON THE 7TH.

...THE BUFFALO WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              98   09/04/1998
 LOW               19   09/12/2014
HIGHEST            94   09/15
LOWEST             32   09/28
AVG. MAXIMUM     72.9              71.4     1.5
AVG. MINIMUM     46.6              45.0     1.6
MEAN             59.8              58.2     1.6
DAYS MAX >= 90      1
DAYS MAX <= 32      0
DAYS MIN <= 32      1
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.34   2013
 MINIMUM         0.11   2015
TOTALS           0.97              1.31   -0.34
DAILY AVG.       0.03
DAYS >= .01         7
DAYS >= .10         3
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.34   09/27 TO 09/27

DEGREE_DAYS
HEATING TOTAL     195               249     -54
 SINCE 7/1        247               314     -67
COOLING TOTAL      46                45       1
 SINCE 1/1        491               491       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.3
HIGHEST WIND SPEED/DIRECTION    36/340    DATE  09/16
HIGHEST GUST SPEED/DIRECTION    53/210    DATE  09/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           23
NUMBER OF DAYS PC              2
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     52

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP                0
HEAVY RAIN                1     RAIN                        3
LIGHT RAIN                4     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                1     SNOW                        0
LIGHT SNOW                2     SLEET                       0
FOG                       6     FOG W/VIS <= 1/4 MILE       4
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 2018...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 63 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 39 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 53
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 30 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.93 INCHES.


$$


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