Climatological Report (Monthly)
Issued by NWS Riverton, WY

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CXUS55 KRIW 012107
CLMRIW

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
205 PM MST SAT FEB 1 2020

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR RIVERTON REGIONAL AIRPORT
FOR THE MONTH OF JANUARY 2020...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2020 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

...RIVERTON WAS WARMER AND WETTER THAN NORMAL IN JANUARY...

THE AVERAGE TEMPERATURE FOR RIVERTON IN JANUARY WAS 20.9 DEGREES...
WHICH WAS 1 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH
WAS 39 DEGREES ON THE 17TH AND 22ND. THE COLDEST READING WAS 0
DEGREES ON THE 16TH. NO DAILY TEMPERATURE RECORDS WERE BROKEN IN
JANUARY.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.27 INCHES...WHICH WAS 113
PERCENT OF NORMAL...MAKING IT THE 6TH WETTEST JANUARY ON RECORD. THE
WETTEST DAY WAS ON THE 27TH...WHEN 0.17 INCHES FELL. THIS BROKE THE
PREVIOUS DAILY RECORD OF 0.16 INCHES...SET IN 2000. THE 14TH HAD
0.03 INCHES...BREAKING THE 2016 RECORD OF A TRACE. SNOWFALL FOR THE
MONTH WAS 3.3 INCHES. IT WAS THE EIGHTH LOWEST SNOWFALL ON RECORD
FOR THE MONTH. THE SNOWIEST DAY WAS ON THE 27TH WITH 1.3 INCHES
FELL...ALSO BREAKING THE 2019 RECORD OF 0.3 INCHES. THE 14TH HAD 0.6
INCHES...BREAKING THE 2016 RECORD OF A TRACE. THE HIGHEST WIND GUST
WAS 51 MPH ON THE 6TH.

...THE RIVERTON WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2020...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH              63   01/01/1997
 LOW              -25   01/06/2017
                        01/22/2008
HIGHEST            39   01/22
                        01/17
                        01/07
LOWEST              0   01/16
AVG. MAXIMUM     31.4              31.3     0.1
AVG. MINIMUM     10.3               8.5     1.8
MEAN             20.9              19.9     1.0
DAYS MAX >= 90      0
DAYS MAX <= 32     15
DAYS MIN <= 32     31
DAYS MIN <= 0       1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         1.01   2017
 MINIMUM         0.01   1999
TOTALS           0.27              0.24    0.03
DAILY AVG.       0.01              0.01    0.00
DAYS >= .01         4
DAYS >= .10         1
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.17   01/27 TO 01/27
 STORM TOTAL       MM
 (MM/DD(HH))

SNOWFALL (INCHES)
TOTALS            3.3                MM      MM
SINCE 7/1        19.3                MM      MM
SNOWDEPTH AVG.      5
DAYS >= 1.0         2

DEGREE_DAYS
HEATING TOTAL    1359              1398     -39
 SINCE 7/1       5091              4715     376
COOLING TOTAL       0                 0       0
 SINCE 1/1          0                 0       0
.................................................

WIND (MPH)
AVERAGE WIND SPEED              7.7
RESULTANT WIND SPEED/DIRECTION   4/276
HIGHEST WIND SPEED/DIRECTION    38/300    DATE  01/17
HIGHEST GUST SPEED/DIRECTION    51/290    DATE  01/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.10
NUMBER OF DAYS FAIR           26
NUMBER OF DAYS PC              5
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     72

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                        2
LIGHT SNOW                5     SLEET                       0
FOG                       5     FOG W/VIS <= 1/4 MILE       1
HAZE                      2

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

LOOKING AHEAD TO FEBRUARY 2020...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 32 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 10 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 41
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 17. THE AVERAGE MONTHLY
PRECIPITATION IS 0.27 INCHES.

$$


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