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
000
CXUS55 KRIW 011937
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1235 PM MST THU FEB 1 2018

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL FOR THE MONTH OF JANUARY 2018...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2018 WILL BE
AVAILABLE APPROXIMATELY IN 60 DAYS FROM THE NATIONAL CENTERS FOR
ENVIRONMENTAL INFORMATION (HTTP://WWW.NCDC.NOAA.GOV/CDO-
WEB/DATASETS). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE
INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...JANUARY WAS WARMER AND VERY DRY FOR GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL FOR THE MONTH OF JANUARY WAS
17.8 DEGREES...WHICH WAS 0.9 DEGREES ABOVE NORMAL. THE WARMEST
READING OF THE MONTH WAS 46 DEGREES ON THE 30TH...AND THE COLDEST
READING WAS -20 DEGREES ON THE 2ND. ONLY ONE DAILY LOW TEMPERATURE
RECORD FELL THIS MONTH...20 BELOW ON THE 2ND...THE OLD RECORD WAS 12
BELOW FROM 2011.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.01....WHICH WAS ONLY 4
PERCENT OF NORMAL. THIS MAKES IT THE 3RD DRIEST JANUARY SINCE 1998.
THE WETTEST 24 HOUR PERIOD WAS THE 10TH...WHEN 0.01 INCHES FELL.
THE HIGHEST WIND GUST WAS 50 MPH ON THE 30TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              55   01/23/2005
 LOW              -37   01/27/2009
HIGHEST            46   01/30
LOWEST            -20   01/02
AVG. MAXIMUM     29.2              28.9     0.3
AVG. MINIMUM      6.4               4.9     1.5
MEAN             17.8              16.9     0.9
DAYS MAX >= 90      0
DAYS MAX <= 32     18
DAYS MIN <= 32     31
DAYS MIN <= 0       8

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.42   2008
 MINIMUM         0.00   2006
                        2005
TOTALS           0.01              0.23   -0.22
DAILY AVG.       0.00              0.01   -0.01
DAYS >= .01         1
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.01   01/10 TO 01/10

DEGREE_DAYS
HEATING TOTAL    1456              1491     -35
 SINCE 7/1       4675              4814    -139
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              4.0
HIGHEST WIND SPEED/DIRECTION    43/340    DATE  01/10
HIGHEST GUST SPEED/DIRECTION    50/330    DATE  01/30

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              9
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     78

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                1     SNOW                       2
LIGHT SNOW                3     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      1
HAZE                      2

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

LOOKING AHEAD TO FEBRUARY 2018...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 DEGREES. 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.