Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011821 CCA
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1103 AM MST WED FEB 01 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR GREYBULL FOR THE MONTH OF
JANUARY 2023...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 20232 WILL BE
AVAILABLE IN APPROXIMATELY 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

...GREYBULL WAS DRIER AND WARMER THAN NORMAL IN JANUARY...

THE AVERAGE TEMPERATURE FOR GREYBULL IN JANUARY WAS 18.6 DEGREES
WHICH WAS 1.1 DEGREE  ABOVE NORMAL. THE WARMEST READING FOR THE
MONTH WAS 43 DEGREES ON THE 10TH. THE COLDEST TEMPERATURE WAS 34
DEGREES BELOW ZERO ON THE 30TH. THIS SHATTERED THE 2002 RECORD OF 12
BELOW. THE 29TH HIT 24 BELOW AND BROKE THE 2002 RECORD OF 17 BELOW.
THE 31ST DROPPED TO 30 BELOW AND BROKE THE 2011 RECORD OF 17 BELOW.

PRECIPITATION FOR THE MONTH WAS 0.10 INCHES...WHICH IS 67 PERCENT OF
NORMAL. THE WETTEST 24-HOUR PERIOD OCCURRED ON THE 27TH-28TH WITH
0.06 INCHES. THE 2ND HAD 0.02 INCHES WHICH BROKE A TRACE FROM 2001.
THE 26TH HAD 0.02 WHICH TIED 2009 AND THE 27TH HAD 0.02 INCHES WHICH
BROKE 0.01 FROM 2002 AND 2013. HIGHEST WIND GUST WAS 43 MPH FROM THE
NORTHWEST ON THE 28TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             55   01/23/2005
 LOW             -37   01/27/2009
HIGHEST           43   01/10
LOWEST           -34   01/30
AVG. MAXIMUM    29.8               28.9     0.9
AVG. MINIMUM     7.4                6.0     1.4
MEAN            18.6               17.5     1.1
DAYS MAX >= 90     0
DAYS MAX <= 32    15
DAYS MIN <= 32    31
DAYS MIN <= 0      5

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        0.42   2008
 MINIMUM        0.00   2006
TOTALS          0.10               0.15   -0.05     0.03
DAILY AVG.      0.00               0.00   -0.00
DAYS >= .01        4
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.06   01/27 TO 01/28
 STORM TOTAL    0.04

DEGREE DAYS
HEATING TOTAL   1432               1474     -42
 SINCE 7/1      4912               4670     242
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              3.6
RESULTANT WIND SPEED/DIRECTION   0/300
HIGHEST WIND SPEED/DIRECTION    36/330    DATE  01/28
HIGHEST GUST SPEED/DIRECTION    43/330    DATE  01/28

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.45
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          9

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                       1
LIGHT SNOW                8     SLEET                      0
FOG                      13     FOG W/VIS <= 1/4 MILE      5
HAZE                      4

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

LOOKING AHEAD TO FEBRUARY 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 30 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 8 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 43
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 18 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.12 INCHES.

$$


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