Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 012023
CLMGEY

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1243 PM MDT WED JUL 1 2015

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE SOUTH BIG HORN COUNTY
AIRPORT NEAR GREYBULL FOR THE MONTH OF JUNE 2015...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 2015 WILL BE
AVAILABLE APPROXIMATELY IN AUGUST 2015 FROM THE NATIONAL CLIMATIC
DATA CENTER (HTTP://WWW.NCDC.NOAA.GOV/OL/CLIMATEDATA.HTML).
UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON THE INTERNET AT
HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...JUNE WAS THE WARMEST ON RECORD AND THE 3RD DRIEST IN GREYBULL...

THE AVERAGE TEMPERATURE FOR GREYBULL IN JUNE WAS 73.0
DEGREES...WHICH WAS 6.8 DEGREES ABOVE NORMAL. THIS MAKES IT THE
WARMEST JUNE ON RECORD. THE WARMEST READING OF THE MONTH WAS 101
DEGREES ON THE 27TH AND 28TH. A RECORD HIGH WAS SET ON THE
27TH...BREAKING THE PREVIOUS RECORD OF 96 SET IN 2013. A RECORD HIGH
OF 96 DEGREES OCCURRED ON THE 19TH...TYING THE PREVIOUS RECORD SET
IN 2013. A RECORD HIGH OF 92 DEGREES OCCURRED ON THE 18TH...TYING
THE PREVIOUS RECORD ALSO SET IN 2013. A RECORD HIGH OF 92 DEGREES
OCCURRED ON THE 12TH...BREAKING THE PREVIOUS RECORD OF 89 DEGREES
SET IN 2006. A RECORD HIGH OF 95 DEGREES OCCURRED ON THE
9TH...BREAKING THE PREVIOUS RECORD OF 94 DEGREES SET IN 2001.
ANOTHER RECORD HIGH OF 87 DEGREES OCCURRED ON THE 1ST...BREAKING THE
PREVIOUS RECORD OF 85 DEGREES ALSO SET IN 2001. THE COLDEST READING
OF THE MONTH WAS 49 DEGREES ON THE 2ND.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.25 INCHES...WHICH WAS 21
PERCENT OF NORMAL. THIS MAKES IT THE 3RD DRIEST JUNE ON RECORD. THE
WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 15TH...WHEN 0.12 OF AN
INCH OF PRECIPITATION FELL. THIS SET A NEW RECORD...BREAKING THE
PREVIOUS RECORD OF 0.05 SET IN 2010. THE HIGHEST WIND GUST WAS 55
MPH ON THE 10TH.

...THE GREYBULL WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2015

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           101   06/28
                        06/27
LOWEST             49   06/02
AVG. MAXIMUM     88.1              80.9     7.2
AVG. MINIMUM     57.9              51.5     6.4
MEAN             73.0              66.2     6.8
DAYS MAX >= 90     13
DAYS MAX <= 32      0
DAYS MIN <= 32      0
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.42   2009
 MINIMUM         0.12   2012
TOTALS           0.25              1.20   -0.95
DAILY AVG.       0.01              0.04   -0.03
DAYS >= .01         4
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.12   06/15 TO 06/15

DEGREE_DAYS
HEATING TOTAL       0                70     -70
 SINCE 7/1       7119              7750    -631
COOLING TOTAL     245               106     139
 SINCE 1/1        250               126     124
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    45/330    DATE  06/10
HIGHEST GUST SPEED/DIRECTION    55/320    DATE  06/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           27
NUMBER OF DAYS PC              3
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     47

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       1     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

LOOKING AHEAD TO JULY 2015...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 92 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 59 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 92
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 61 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.18 INCHES.

$$


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