Climatological Report (Monthly)
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CXUS55 KRIW 012026
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1137 AM MDT FRI SEP 1 2017

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SWEETWATER COUNTY
AIRPORT NEAR ROCK SPRINGS FOR THE MONTH OF AUGUST 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF AUGUST 2017 WILL BE
AVAILABLE APPROXIMATELY IN OCTOBER 2017 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...

...AUGUST WAS SLIGHTLY WETTER THAN NORMAL IN ROCK SPRINGS...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN AUGUST WAS 67.1
DEGREES...WHICH WAS 0.2 DEGREES ABOVE NORMAL. THIS TIES 1998 AND
2008 AS THE 20TH WARMEST AUGUST ON RECORD. THE WARMEST READING OF
THE MONTH WAS 90 DEGREES ON THE 1ST AND 4TH. THE COLDEST READING WAS
47 DEGREES ON THE 16TH AND 24TH. NO TEMPERATURE RECORDS WERE SET
DURING THE MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.70 INCHES...WHICH WAS 113
PERCENT OF NORMAL. THIS MAKES IT THE 23RD WETTEST AUGUST ON RECORD.
THE WETTEST 24 HOUR PERIOD WAS THE 9TH AND 15TH...WHEN 0.27 OF AN
INCH FELL ON BOTH DAYS AND SETTING A NEW RECORD ON THE 15TH. THIS
BARELY BROKE THE PREVIOUS RECORD OF 0.26...SET IN 2011. THE HIGHEST
WIND GUST WAS 53 MPH ON THE 13TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              96   08/14/2003
 LOW               33   08/31/1962
HIGHEST            90   08/04
                        08/01
LOWEST             47   08/24
                        08/16
AVG. MAXIMUM     82.0              81.5     0.5
AVG. MINIMUM     52.2              52.2     0.0
MEAN             67.1              66.9     0.2
DAYS MAX >= 90      2
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.12   1963
 MINIMUM         0.01   2012
TOTALS           0.70              0.62    0.08
DAILY AVG.       0.02              0.02    0.00
DAYS >= .01         7
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.27   08/15 TO 08/15
                        08/09 TO 08/09

DEGREE_DAYS
HEATING TOTAL      17                40     -23
 SINCE 7/1         17                64     -47
COOLING TOTAL      90                97      -7
 SINCE 1/1        368               277      91
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
RESULTANT WIND SPEED/DIRECTION   2/270
HIGHEST WIND SPEED/DIRECTION    40/260    DATE  08/13
HIGHEST GUST SPEED/DIRECTION    53/250    DATE  08/13

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           28
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     39

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN               10     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       3     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 2017...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 77 DEGREES... AND THE AVERAGE LOW
TEMPERATURE IS 48 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH
IS 64 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 37 DEGREES. THE
AVERAGE MONTHLY PRECIPITATION IS 0.92 INCHES.

$$



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