Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 021448
CLMRKS

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
748 AM MST THU FEB 2 2017

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

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2017 WILL BE
AVAILABLE APPROXIMATELY IN MARCH 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

...ROCK SPRINGS WAS COLDER THAN NORMAL IN JANUARY...

THE AVERAGE TEMPERATURE FOR ROCK SPRINGS IN JANUARY WAS 14.5
DEGREES...WHICH WAS 6.9 DEGREES BELOW NORMAL. THE WARMEST READING
OF THE MONTH WAS 38 DEGREES ON THE 9TH...AND THE COLDEST WAS 24
BELOW ZERO ON THE 6TH. ONE DAILY LOW RECORD WAS TIED ON THE 5TH...
WITH 20 BELOW ZERO TYING THE 1970 RECORD.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.49 INCHES...WHICH WAS 0.04
INCHES ABOVE NORMAL...OR 109 PERCENT OF NORMAL FOR THE MONTH.
THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 11TH WHEN 0.17 INCHES
FELL. NO PRECIPITATION RECORDS WERE SET THIS MONTH.

THE HIGHEST WIND GUST WAS 54 MPH ON THE 11TH.

...THE ROCK SPRINGS WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY
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              55   01/07/1969
 LOW              -37   01/12/1963
HIGHEST            38   01/09
LOWEST            -24   01/06
AVG. MAXIMUM     22.5              30.3    -7.8
AVG. MINIMUM      6.5              12.5    -6.0
MEAN             14.5              21.4    -6.9
DAYS MAX >= 90      0
DAYS MAX <= 32     24
DAYS MIN <= 32     31
DAYS MIN <= 0      11

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.54   1978
 MINIMUM            T   2013
TOTALS           0.49              0.45    0.04
DAILY AVG.       0.02              0.01    0.01
DAYS >= .01         7
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.17   01/11 TO 01/11
                        01/10 TO 01/11
                        01/11 TO 01/11

DEGREE_DAYS
HEATING TOTAL    1558              1352     206
 SINCE 7/1       4683              4704     -21
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              9.8
RESULTANT WIND SPEED/DIRECTION   6/240
HIGHEST WIND SPEED/DIRECTION    43/260    DATE  01/11
HIGHEST GUST SPEED/DIRECTION    54/270    DATE  01/11

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          1     HAIL                       0
HEAVY SNOW                5     SNOW                       8
LIGHT SNOW               17     SLEET                      0
FOG                      24     FOG W/VIS <= 1/4 MILE     12
HAZE                     19

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

LOOKING AHEAD TO FEBRUARY 2017...
THE AVERAGE HIGH TEMPERATURE ON THE FIRST OF THE MONTH IS 31
DEGREES... AND THE AVERAGE LOW TEMPERATURE IS 13 DEGREES. THE
AVERAGE HIGH BY THE END OF THE MONTH IS 38 DEGREES...AND THE AVERAGE
LOW TEMPERATURE IS 19 DEGREES. THE AVERAGE MONTHLY PRECIPITATION IS
0.48 INCHES.

$$


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