Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011034
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
251 AM MDT THU SEP 1 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL FOR THE MONTH OF AUGUST 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF AUGUST 2016 WILL BE
AVAILABLE APPROXIMATELY IN OCTOBER 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

...GREYBULL WAS SLIGHTLY DRIER THAN NORMAL IN AUGUST...

THE AVERAGE TEMPERATURE FOR GREYBULL IN AUGUST WAS 72.2
DEGREES...WHICH WAS 0.2 DEGREES ABOVE NORMAL. THE WARMEST READING OF
THE MONTH WAS 99 DEGREES ON THE 2ND. A RECORD MINIMUM HIGH OF 81
DEGREES OCCURRED ON THE 11TH...BREAKING THE PREVIOUS RECORD OF
82...WHICH WAS LAST SET IN 2005. A RECORD MINIMUM HIGH OF 67 DEGREES
OCCURRED ON THE 19TH...BREAKING THE PREVIOUS RECORD OF 77...WHICH
WAS LAST SET IN 2015. A RECORD HIGH OF 97 DEGREES OCCURRED ON THE
31ST...TYING THE PREVIOUS RECORD SET IN 2011. THE COLDEST READING
WAS 45 DEGREES ON THE 20TH...SETTING A NEW RECORD. THIS BROKE THE
PREVIOUS RECORD OF 46...SET IN 2015. A RECORD LOW OF 47 DEGREES
OCCURRED ON THE 21ST...BREAKING THE PREVIOUS RECORD OF 48...SET IN
2000.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.33...WHICH WAS 79 PERCENT OF
NORMAL. THE WETTEST 24 HOUR PERIOD WAS THE 19TH...WHEN 0.22 OF AN
INCH FELL. THIS SET A NEW RECORD...BREAKING THE PREVIOUS RECORD OF
0.04 SET IN 2009. 0.08 OF AN INCH OF PRECIPITATION FELL ON THE
7TH...BREAKING THE PREVIOUS RECORD OF 0.06...SET IN 2011. THE
HIGHEST WIND GUST WAS 55 MPH ON THE 7TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 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             105   08/03/2001
 LOW               36   08/31/2005
HIGHEST            99   08/02
LOWEST             45   08/20
AVG. MAXIMUM     88.4              89.1    -0.7
AVG. MINIMUM     56.1              54.8     1.3
MEAN             72.2              72.0     0.2
DAYS MAX >= 90     16
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.01   2014
 MINIMUM            T   2013
TOTALS           0.33              0.42   -0.09
DAILY AVG.       0.01              0.01    0.00
DAYS >= .01         4
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.22   08/19 TO 08/19

DEGREE_DAYS
HEATING TOTAL      17                15       2
 SINCE 7/1         19                21      -2
COOLING TOTAL     249               230      19
 SINCE 1/1        845               633     212
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    45/310    DATE  08/07
HIGHEST GUST SPEED/DIRECTION    55/310    DATE  08/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           29
NUMBER OF DAYS PC              2
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     36

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       0
LIGHT RAIN                7     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                     23

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

LOOKING AHEAD TO SEPTEMBER 2016...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 83 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 50 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 75 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 42 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 0.51 INCHES.

$$


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