Climatological Report (Monthly)
Issued by NWS Riverton, WY

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CXUS55 KRIW 022100 AAA
CLMRIW

CLIMATE REPORT...AMENDED
NATIONAL WEATHER SERVICE RIVERTON WY
729 AM MST TUE FEB 2 2016

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON REGIONAL AIRPORT
FOR THE MONTH OF JANUARY 2016...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2016 WILL BE
AVAILABLE APPROXIMATELY IN MARCH 2016 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.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...JANUARY WAS COLDER AND WETTER THAN NORMAL IN RIVERTON...

THE AVERAGE TEMPERATURE FOR RIVERTON IN JANUARY WAS 18.3 DEGREES...
WHICH WAS 1.6 DEGREES BELOW NORMAL. THE WARMEST READING OF THE MONTH
WAS 44 DEGREES ON THE 29TH. THE COLDEST READING OF THE MONTH WAS 9
BELOW ON THE 11TH. NO NEW TEMPERATURE RECORDS WERE SET LAST
MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.40 INCHES...WHICH WAS 167
PERCENT OF NORMAL. THIS MAKES IT THE 2ND WETTEST JANUARY ON RECORD
SINCE 1996. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 7TH AND
8TH...WHEN 0.33 OF AN INCH OF PRECIPITATION FELL. NEW RECORDS
WERE SET BOTH DAYS. 0.21 OF AN INCH OF PRECIPITATION FELL ON THE
7TH...EASILY BREAKING THE PREVIOUS RECORD OF 0.01...SET IN 2009.
0.12 OF AN INCH OF PRECIPITATION FELL ON THE 8TH...TYING THE
PREVIOUS RECORD SET IN 2006. 0.05 OF AN INCH OF PRECIPITATION FELL
ON THE 24TH...BREAKING THE PREVIOUS RECORD OF 0.03 SET IN 2012. 0.01
OF AN INCH OF PRECIPITATION FELL ON THE 30TH...BREAKING THE PREVIOUS
RECORD OF A TRACE...SET IN 2007. TOTAL SNOWFALL FOR THE MONTH WAS 5.3
INCHES. A COUPLE OF RECORDS FOR SNOWFALL WERE ALSO SET. 2.8 INCHES OF
SNOW FELL ON THE 7TH...BREAKING THE PREVIOUS RECORD OF 0. 0.6
INCHES FELL ON THE 24TH...BREAKING THE PREVIOUS RECORD OF 0.3...SET
IN 2012. THE HIGHEST WIND GUST WAS 50 MPH ON THE 29TH.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 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              57   01/19/2009
 LOW              -25   01/22/2008
HIGHEST            44   01/29
LOWEST             -9   01/11
AVG. MAXIMUM     28.5              31.3    -2.8
AVG. MINIMUM      8.0               8.5    -0.5
MEAN             18.3              19.9    -1.6
DAYS MAX >= 90      0
DAYS MAX <= 32     22
DAYS MIN <= 32     31
DAYS MIN <= 0       6

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.68   2014
 MINIMUM         0.01   1999
TOTALS           0.40              0.24    0.16
DAILY AVG.       0.01              0.01    0.00
DAYS >= .01         5
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.33   01/07 TO 01/08
 STORM TOTAL       MM
 (MM/DD(HH))

SNOWFALL (INCHES)
TOTALS            5.3                MM      MM
SINCE 7/1        25.6                MM      MM
SNOWDEPTH AVG.      3
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL    1442              1398      44
 SINCE 7/1       4381              4715    -334
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
RESULTANT WIND SPEED/DIRECTION   2/293
HIGHEST WIND SPEED/DIRECTION    40/290    DATE  01/29
HIGHEST GUST SPEED/DIRECTION    50/290    DATE  01/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                0     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                6     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      4
HAZE                      5

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

LOOKING AHEAD TO FEBRUARY 2016...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 32 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 10 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 41
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 17 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.27 INCHES.

$$


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