Climatological Report (Monthly)
Issued by NWS Riverton, WY

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CXUS55 KRIW 011244
CLMRIW

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

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON REGIONAL AIRPORT
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

...RIVERTON WAS SLIGHTLY COOLER AND DRIER THAN NORMAL IN AUGUST...

THE AVERAGE TEMPERATURE FOR RIVERTON IN AUGUST WAS 68.2
DEGREES...WHICH WAS 1.5 DEGREES BELOW NORMAL. THE WARMEST READING OF
THE MONTH WAS 94 DEGREES ON THE 2ND AND 3RD. A RECORD MINIMUM HIGH
OF 56 DEGREES OCCURRED ON THE 19TH...BREAKING THE PREVIOUS RECORD OF
72...SET IN 2004. A RECORD MINIMUM HIGH OF 72 DEGREES OCCURRED ON
THE 24TH...TYING THE PREVIOUS RECORD SET IN 2014. THE COLDEST
READING WAS 39 DEGREES ON THE 20TH...TYING THE RECORD FOR COLDEST
TEMPERATURE IN THE MONTH...AS WELL AS BREAKING THE DAILY RECORD.
THIS BROKE THE PREVIOUS RECORD OF 48...SET IN 2005. A FEW OTHER
RECORD LOWS WERE SET DURING THE MONTH:

47 DEGREES ON THE 12TH...OLD RECORD WAS 48 IN 2004
46 DEGREES ON THE 21ST...OLD RECORD WAS 48 IN 2000
44 DEGREES ON THE 26TH...TIED OLD RECORD OF 44 IN 2004
46 DEGREES ON THE 27TH...TIED OLD RECORD OF 46 IN 2008

TOTAL PRECIPITATION FOR THE MONTH WAS 0.44 OF AN INCH...WHICH WAS 77
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD WAS THE 18TH AND
19TH...WHEN 0.20 OF AN INCH OF PRECIPITATION FELL. 0.04 OF AN INCH
ON THE 19TH SET A NEW RECORD...BREAKING THE PREVIOUS RECORD OF A
TRACE...SET IN 1999. 0.05 OF AN INCH OF PRECIPITATION FELL ON THE
7TH...BREAKING THE PREVIOUS RECORD OF 0.02...SET IN 2014. 0.13 OF AN
INCH OF PRECIPITATION FELL ON THE 24TH...BREAKING THE PREVIOUS
RECORD OF 0.05...SET IN 2009. THE HIGHEST WIND GUST WAS 49 MPH ON
THE 15TH.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              99   08/14/2003
                        08/06/2001
 LOW               39   08/20/2016
                        08/23/2015
HIGHEST            94   08/03
                        08/02
LOWEST             39R  08/20
AVG. MAXIMUM     84.1              85.2    -1.1
AVG. MINIMUM     52.3              54.3    -2.0
MEAN             68.2              69.7    -1.5
DAYS MAX >= 90      7
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.15   2014
 MINIMUM         0.03   2013
TOTALS           0.44              0.57   -0.13
DAILY AVG.       0.01              0.02   -0.01
DAYS >= .01         6
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.20   08/18 TO 08/19

SNOWFALL (INCHES)
TOTALS            0.0                MM      MM
SINCE 7/1         0.0                MM      MM
SNOWDEPTH AVG.      0
DAYS >= 1.0         0

DEGREE_DAYS
HEATING TOTAL      47                26      21
 SINCE 7/1         51                38      13
COOLING TOTAL     153               173     -20
 SINCE 1/1        570               468     102
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
RESULTANT WIND SPEED/DIRECTION   2/344
HIGHEST WIND SPEED/DIRECTION    40/250    DATE  08/15
HIGHEST GUST SPEED/DIRECTION    49/240    DATE  08/15

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           29
NUMBER OF DAYS PC              1
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     41

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       2
LIGHT RAIN                8     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       4     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

-  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 81 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 51 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 71 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 43 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 0.65 INCHES.

$$


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