Climatological Report (Monthly)
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669
CXUS55 KRIW 012058
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
258 PM MDT WED AUG 1 2018

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

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JULY 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

...JULY WAS SLIGHTLY WARMER AND MUCH DRIER THAN NORMAL FOR
GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL FOR THE MONTH OF JULY WAS 75.7
DEGREES. THIS WAS 2 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE
MONTH WAS 102 DEGREES ON THE 6TH...AND THE COLDEST READING WAS 49
DEGREES ON THE 4TH...WHICH TIED THE RECORD LOW FROM 2005. A HIGH
TEMPERATURE OF 101 DEGREES ON THE 7TH BROKE THE RECORD HIGH OF 100
FROM 2007.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.16 INCHES....WHICH WAS 24
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD WAS THE 10TH...WHEN
0.06 INCHES FELL. A DAILY PRECIPITATION RECORD FROM 2017 WAS TIED ON
THE 29TH WHEN 0.03 INCHES FELL. THE HIGHEST WIND GUST WAS 79 MPH ON
THE 26TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JULY 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             108   07/14/2002
 LOW               44   07/07/2010
                        07/12/2008
HIGHEST           102   07/06
LOWEST             49   07/04
AVG. MAXIMUM     92.3              90.3     2.0
AVG. MINIMUM     59.2              57.2     2.0
MEAN             75.7              73.7     2.0
DAYS MAX >= 90     20
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         0.53   2004
 MINIMUM         0.00   2011
                        2007
TOTALS           0.16              0.66   -0.50
DAILY AVG.       0.01              0.02   -0.01
DAYS >= .01         5
DAYS >= .10         0
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.06   07/10 TO 07/10

DEGREE_DAYS
HEATING TOTAL       0                 6      -6
 SINCE 7/1          0                 6      -6
COOLING TOTAL     340               277      63
 SINCE 1/1        476               403      73
.................................................

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    56/350    DATE  07/26
HIGHEST GUST SPEED/DIRECTION    79/040    DATE  07/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           31
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     45

THUNDERSTORM              9     MIXED PRECIP                0
HEAVY RAIN                0     RAIN                        2
LIGHT RAIN               13     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                0     SLEET                       0
FOG                       0     FOG W/VIS <= 1/4 MILE       0
HAZE                      3

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

LOOKING AHEAD TO AUGUST 2018...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 92 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 58 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 84
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 50 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.42 INCHES.

$$



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