Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011827
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1222 PM MDT MON JUL 1 2019

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL FOR THE MONTH OF JUNE 2019...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 2019 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

...JUNE WAS COOLER AND DRIER THAN NORMAL FOR GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL FOR THE MONTH OF JUNE WAS 65.6
DEGREES...WHICH WAS 0.6 DEGREES BELOW NORMAL. THE WARMEST READING OF
THE MONTH WAS 95 DEGREES ON THE 27TH AND 28TH...AND THE COLDEST WAS
36 DEGREES ON THE 9TH...WHICH BROKE THE 2008 RECORD OF 39 DEGREES.
THREE OTHER DAILY RECORD LOWS WERE ALSO SET...41 DEGREES ON THE
10TH...TIED THE PREVIOUS RECORD FROM 2005...39 DEGREES ON THE
22ND...BROKE 44 DEGREES FROM 2004...AND 44 DEGREES ON THE 23RD BROKE
THE 2013 RECORD OF 45 DEGREES.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.74 INCHES....WHICH WAS 62
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD WAS ON THE 15TH...
WHEN 0.38 INCHES FELL...WHICH BROKE THE DAILY RECORD OF 0.18 INCHES
FROM 2018. THE HIGHEST WIND GUST WAS 50 MPH ON THE 22ND.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             105   06/24/2012
                        06/29/2002
 LOW               32   06/07/2009
HIGHEST            95   06/28
                        06/27
LOWEST             36   06/09
AVG. MAXIMUM     79.8              80.9    -1.1
AVG. MINIMUM     51.4              51.5    -0.1
MEAN             65.6              66.2    -0.6
DAYS MAX >= 90      3
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.42   2009
 MINIMUM         0.12   2012
TOTALS           0.74              1.20   -0.46
DAILY AVG.       0.02              0.04   -0.02
DAYS >= .01         9
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.38   06/15 TO 06/15

DEGREE_DAYS
HEATING TOTAL      70                70       0
 SINCE 7/1       7967              7750     217
COOLING TOTAL      95               106     -11
 SINCE 1/1        102               126     -24
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.6
HIGHEST WIND SPEED/DIRECTION    44/330    DATE  06/19
HIGHEST GUST SPEED/DIRECTION    50/280    DATE  06/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           24
NUMBER OF DAYS PC              6
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     53

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     MIXED PRECIP                0
HEAVY RAIN                1     RAIN                        3
LIGHT RAIN               14     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                0     SLEET                       0
FOG                       3     FOG W/VIS <= 1/4 MILE       0
HAZE                      5

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

LOOKING AHEAD TO JULY 2019...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 87 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 55 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 92
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 58 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.66 INCHES.

$$


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