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CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
118 PM MDT WED OCT 1 2014

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR ROCK SPRINGS FOR THE
MONTH OF SEPTEMBER 2014...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF SEPTEMBER 2014 WILL BE
AVAILABLE APPROXIMATELY IN NOVEMBER 2014 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.CRH.NOAA.GOV/RIW/CLIMATE/...

...ROCK SPRINGS WAS WARMER AND WETTER THAN NORMAL IN SEPTEMBER...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN SEPTEMBER WAS 58.8
DEGREES... WHICH WAS 2.3 DEGREES ABOVE NORMAL. THE WARMEST READING
FOR THE MONTH WAS 84 DEGREES ON THE 3RD AND THE 18TH. THE 84 DEGREES
ON THE 18TH BROKE THE PREVIOUS DAILY RECORD HIGH TEMPERATURE OF 82
DEGREES...WHICH WAS LAST 2010. THE COLDEST READING WAS 21 DEGREES ON
THE 12TH...WHICH BROKE THE DAILY RECORD LOW TEMPERATURE OF 26
DEGREES...WHICH WAS LAST SET IN 1951. AND ON THE 11TH A RECORD LOW
TEMPERATURE OF 27 DEGREES TIED THE PREVIOUS RECORD LOW...WHICH WAS
LAST SET IN 1989.

TOTAL PRECIPITATION FOR THE MONTH WAS 1.20 INCHES...WHICH WAS 130
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE
27TH AND THE 28TH...WHEN 1.13 INCHES OF PRECIPITATION FELL. THERE
WERE 2 PRECIPITATION RECORDS. ON THE 27TH A RECORD PRECIPITATION OF
0.81 INCHES BROKE THE PREVIOUS RECORD OF 0.16 INCHES...WHICH WAS
LAST SET IN 1972. AND ON THE 28TH A RECORD PRECIPITATION OF 0.32
INCHES BROKE THE PREVIOUS RECORD OF 0.31 INCHES...WHICH WAS LAST SET
IN 1965. THE HIGHEST WIND GUST WAS 46 MPH...WHICH OCCURRED ON THE
11TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2014...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2014

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              89   09/04/1995
                        09/03/1950
 LOW                5   09/18/1965
HIGHEST            84   09/18
                        09/03
LOWEST             21   09/12
AVG. MAXIMUM     73.2              70.3     2.9
AVG. MINIMUM     44.5              42.7     1.8
MEAN             58.8              56.5     2.3
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      2
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         3.67   1965
 MINIMUM            T   2012
TOTALS           1.20              0.92    0.28
DAILY AVG.       0.04              0.03    0.01
DAYS >= .01         5
DAYS >= .10         2
DAYS >= .50         1
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    1.13   09/27 TO 09/28

DEGREE_DAYS
HEATING TOTAL     185               264     -79
 SINCE 7/1        276               328     -52
COOLING TOTAL       8                 9      -1
 SINCE 1/1        307               286      21
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.6
RESULTANT WIND SPEED/DIRECTION   3/249
HIGHEST WIND SPEED/DIRECTION    37/060    DATE  09/11
HIGHEST GUST SPEED/DIRECTION    46/060    DATE  09/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           25
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          2

AVERAGE RH (PERCENT)     49

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                1     RAIN                       3
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

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

LOOKING AHEAD TO OCTOBER 2014...THE AVERAGE HIGH TEMPERATURE ON
THE FIRST OF THE MONTH IS 63 DEGREES...AND THE AVERAGE LOW
TEMPERATURE IS 37. THE AVERAGE HIGH BY THE END OF THE MONTH IS 49
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 28. THE AVERAGE MONTHLY
PRECIPITATION IS 0.87 INCHES.

$$








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