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 28 29 30 31 32 33 34 35 36 37 38 39
000
CXUS55 KRIW 011957
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1257 PM MDT SAT AUG 1 2015

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE LAKE YELLOWSTONE FOR
THE MONTH OF JULY 2015...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JULY 2015 WILL BE
AVAILABLE APPROXIMATELY IN SEPTEMBER 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

...JULY WAS THE 2ND COLDEST AND 8TH DRIEST ON RECORD IN LAKE
YELLOWSTONE...

THE AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN JULY WAS 53.9
DEGREES...WHICH WAS 2.0 DEGREES BELOW NORMAL. THIS MAKES IT TIED FOR
THE 2ND COLDEST JULY ON RECORD. THE WARMEST READING OF THE MONTH WAS
82 DEGREES ON THE 4TH. THIS SET A NEW RECORD...BREAKING THE PREVIOUS
RECORD OF 80 DEGREES...SET IN 2007. THE COLDEST READING OF THE MONTH
WAS 28 DEGREES ON THE 29TH. THIS SET A NEW RECORD...BREAKING THE
PREVIOUS RECORD 33 DEGREES...SET IN 2011. ANOTHER RECORD LOW OF 34
DEGREES WAS SET ON THE 19TH...TYING THE PREVIOUS RECORD SET IN 2008.
ANOTHER RECORD LOW OF 30 DEGREES WAS SET ON THE 28TH...BREAKING THE
PREVIOUS RECORD OF 32 DEGREES...SET IN 2002.


TOTAL PRECIPITATION FOR THE MONTH WAS 1.13 INCHES...WHICH WAS 77
PERCENT OF NORMAL. THIS MAKES IT THE 8TH DRIEST JULY ON RECORD. THE
WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 5TH AND 6TH...WHEN 0.31
OF AN INCH OF PRECIPITATION FELL. 0.30 OF AN INCH OF PRECIPITATION
FELL ON THE 5TH...BREAKING THE PREVIOUS RECORD OF 0.29 SET IN 2013.
THE HIGHEST WIND GUST WAS 39 MPH ON THE 27TH.

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF JULY 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              86   07/14/2002
                        07/31/2000
 LOW               27   07/12/2008
HIGHEST            82   07/04
LOWEST             28   07/29
AVG. MAXIMUM     69.2
AVG. MINIMUM     38.7
MEAN             53.9              55.9    -2.0
DAYS MAX >= 90      0
DAYS MAX <= 32      0
DAYS MIN <= 32      2
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         2.42   2007
 MINIMUM         0.20   2008
TOTALS           1.13              1.47   -0.34
DAILY AVG.       0.04
DAYS >= .01        12
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.31   07/05 TO 07/06

DEGREE_DAYS
HEATING TOTAL     332               283      49
 SINCE 7/1        332               283      49
COOLING TOTAL       0                 0       0
 SINCE 1/1          1                 0       1
.................................................

WIND (MPH)
AVERAGE WIND SPEED              3.1
HIGHEST WIND SPEED/DIRECTION    22/290    DATE  07/27
HIGHEST GUST SPEED/DIRECTION    39/270    DATE  07/27

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)     62

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                       0
LIGHT SNOW                0     SLEET                      0
FOG                       0     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 AUGUST 2015...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 74 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 39 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 65
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 37 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.37 INCHES.

$$


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.