Climatological Report (Monthly)
Issued by NWS

Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28
000
CXUS55 KRIW 021403
CLMGEY

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

.PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL 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

...JANUARY WAS A RECORD COLD MONTH FOR GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL IN JANUARY WAS 3.6 DEGREES...
WHICH WAS 13.3 DEGREES BELOW NORMAL. THIS WAS THE COLDEST JANUARY
SINCE 2004 WHEN THE AVERAGE WAS 11.8 DEGREES. THE WARMEST READING
OF THE MONTH WAS 36 DEGREES ON THE 20TH...AND THE COLDEST WAS 30
DEGREES BELOW ZERO ON THE 5TH. SEVERAL RECORD LOWS OCCURRED.

  DATE       NEW RECORD     OLD RECORD     YEAR SET
   3           -15             -13           2013
   4           -25             -13           2011
   5           -30             -24           2004
   6           -23             -20           2010
  13           -20             -13           2007
  14           -23             -21           2007
  15           -22             -21           2005
  16           -20             -15           2005
  17           -15             -10           2013
  18            -7  TIED       -7            2013

TOTAL PRECIPITATION FOR THE MONTH WAS 0.11...WHICH WAS 0.12 INCHES
BELOW NORMAL FOR THE MONTH OR 48 PERCENT OF NORMAL. THE WETTEST
24 HOUR PERIOD WAS THE 10TH-11TH...WHEN 0.08 INCHES FELL. THE
HIGHEST WIND GUST WAS 47 MPH ON THE 10TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              55   01/23/2005
 LOW              -37   01/27/2009
HIGHEST            36   01/20
LOWEST            -30   01/05
AVG. MAXIMUM     14.9              28.9   -14.0
AVG. MINIMUM     -7.6               4.9   -12.5
MEAN              3.6              16.9   -13.3
DAYS MAX >= 90      0
DAYS MAX <= 32     29
DAYS MIN <= 32     31
DAYS MIN <= 0      22

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.42   2008
 MINIMUM         0.00   2006
                        2005
TOTALS           0.11              0.23   -0.12
DAILY AVG.       0.00              0.01   -0.01
DAYS >= .01         3
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.08   01/10 TO 01/11

DEGREE_DAYS
HEATING TOTAL    1894              1491     403
 SINCE 7/1       4918              4814     104
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              3.9
HIGHEST WIND SPEED/DIRECTION    39/310    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    47/310    DATE  01/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              8
NUMBER OF DAYS CLOUDY          5

AVERAGE RH (PERCENT)     79

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                       2
LIGHT SNOW               13     SLEET                      0
FOG                      17     FOG W/VIS <= 1/4 MILE      4
HAZE                     10

-  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 7 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 43
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 17 ABOVE. THE AVERAGE
MONTHLY PRECIPITATION IS 0.18 INCHES.

$$



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.