Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 012021
CLMCPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1 PM MST WED MAR 1 2017

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER FOR THE MONTH OF FEBRUARY 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF FEBRUARY 2017 WILL BE
AVAILABLE APPROXIMATELY IN APRIL 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

...FEBRUARY WAS WARMER AND WETTER THAN NORMAL IN CASPER...

THE AVERAGE TEMPERATURE FOR CASPER IN FEBRUARY WAS 31.2
DEGREES...WHICH WAS 4.5 DEGREES ABOVE NORMAL. THE WARMEST
TEMPERATURE FOR THE MONTH WAS 62 DEGREES ON THE 10TH...WHICH WAS
ALSO A NEW DAILY RECORD...BREAKING THE PREVIOUS RECORD OF 60 DEGREES
SET IN 1951. THE COLDEST READING OF THE MONTH WAS 12 DEGREES BELOW
ZERO OCCURRING ON BOTH THE 2ND AND 3RD.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.81 INCHES...WHICH WAS 0.24
INCHES ABOVE NORMAL FOR THE MONTH OR 142 PERCENT OF NORMAL. THE
WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 22ND AND 23RD WHEN 0.47
INCHES OF PRECIPITATION FALL. THE 23RD HAD 0.4 INCHES WHICH BROKE
THE PREVIOUS RECORD OF 0.23 SET IN 1947....AND 0.31 INCHES FELL ON
THE 7TH...BREAKING THE PREVIOUS RECORD OF 0.18 INCHES SET IN 1940.
THE HIGHEST WIND GUST WAS 62 MPH ON THE 21ST.

SNOWFALL FOR THE MONTH WAS 14.3 INCHES...WHICH IS 146 PERCENT OF
NORMAL..OR 4.5 INCHES ABOVE NORMAL. THE SNOWIEST DAY WAS THE 23RD
WITH 9 INCHES OF SNOW...WHICH BREAKS THE 1952 RECORD OF 2.3 INCHES.
THE 7TH ALSO HAD RECORD BREAKING SNOW WITH 4 INCHES...PREVIOUS
RECORD WAS 3.6 INCHES IN 1980.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF FEBRUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              68   02/21/1982
 LOW              -32   02/17/2006
HIGHEST            61   02/10
LOWEST            -12   02/03
                        02/02
AVG. MAXIMUM     42.4              37.8     4.6
AVG. MINIMUM     20.0              15.7     4.3
MEAN             31.2              26.7     4.5
DAYS MAX >= 90      0
DAYS MAX <= 32      7
DAYS MIN <= 32     20
DAYS MIN <= 0       2

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.42   1987
 MINIMUM         0.13   2005
TOTALS           0.81              0.57    0.24
DAILY AVG.       0.03              0.02    0.01
DAYS >= .01         5
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.47   02/22 TO 02/23

SNOWFALL (INCHES)
TOTALS           14.3               9.8     4.5
SINCE 7/1        53.5              49.4     4.1
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL     940              1071    -131
 SINCE 7/1       5190              5448    -258
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              16.7
RESULTANT WIND SPEED/DIRECTION  12/225
HIGHEST WIND SPEED/DIRECTION    51/230    DATE  02/21
HIGHEST GUST SPEED/DIRECTION    62/230    DATE  02/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           19
NUMBER OF DAYS PC              4
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     63

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                3     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       3
LIGHT SNOW                8     SLEET                      0
FOG                       7     FOG W/VIS <= 1/4 MILE      2
HAZE                      5

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

LOOKING AHEAD TO MARCH 2017...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 43 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 19 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 52
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 26. THE AVERAGE MONTHLY
PRECIPITATION IS 0.82 INCHES.

$$



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