Climatological Report (Monthly)
Issued by NWS

Home | 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 40 41 42 43 44 45 46 47 48 49 50
000
CXUS55 KRIW 012053
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
253 PM MDT WED NOV 1 2017


...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE LAKE YELLOWSTONE FOR
THE MONTH OF OCTOBER 2017...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF OCTOBER 2017 WILL BE
AVAILABLE APPROXIMATELY IN DECEMBER 2017 FROM THE NATIONAL CENTER
FOR ENVIRONMENTAL INFORMATION (HTTP://WWW.NCEI.NOAA.GOV/OL/
CLIMATEDATA.HTML). UNOFFICIAL ASOS DAILY SUMMARIES ARE AVAILABLE ON
THE INTERNET AT HTTP://WWW.WEATHER.GOV/CLIMATE/INDEX.PHP?WFO=RIW

...LAKE YELLOWSTONE WAS COLDER AND DRIER THAN NORMAL IN OCTOBER...

THE AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN OCTOBER WAS 32.2
DEGREES...WHICH WAS 3.4 DEGREES BELOW NORMAL. THIS MAKES IT THE 5TH
COLDEST OCTOBER ON RECORD. THE WARMEST READING OF THE MONTH WAS 58
DEGREES ON THE 19TH. THE COLDEST READING WAS 11 DEGREES ON THE 31ST.
NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.69 INCHES...WHICH WAS 51
PERCENT OF NORMAL. THIS MAKES IT THE 3RD DRIEST OCTOBER ON RECORD.
THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS THE 14TH...WHEN 0.18
INCHES FELL. NO PRECIPITATION RECORDS WERE BROKEN THIS MONTH. THE
HIGHEST WIND GUST WAS 39 MPH ON THE 22ND.

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF OCTOBER
2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1998 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              74   10/02/2010
 LOW               -6   10/10/2009
HIGHEST            58   10/19
LOWEST             11   10/31
AVG. MAXIMUM     43.2
AVG. MINIMUM     21.3
MEAN             32.2              35.6    -3.4
DAYS MAX >= 90      0
DAYS MAX <= 32      2
DAYS MIN <= 32     30
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         5.78   2016
 MINIMUM         0.36   1998
TOTALS           0.69              1.35   -0.66
DAILY AVG.       0.02
DAYS >= .01        11
DAYS >= .10         2
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.18   10/14 TO 10/14

DEGREE_DAYS
HEATING TOTAL     976               913      63
 SINCE 7/1       2126              2048      78
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              3.5
HIGHEST WIND SPEED/DIRECTION    21/270    DATE  10/22
HIGHEST GUST SPEED/DIRECTION    39/290    DATE  10/22

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)     71

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                2     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 NOVEMBER 2017...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 41 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 18 DEGREES. THE AVERAGE HIGH TEMPERATURE BY THE END OF THE MONTH
IS 26 DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 7. THE AVERAGE
MONTHLY PRECIPITATION IS 2.08 INCHES.

$$


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