Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011714 CCA
CLMBPI

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1010 AM MST SAT JAN 01 2022


...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR BIG PINEY FOR THE MONTH
OF DECEMBER 2021...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF DECEMBER 2021 WILL BE
AVAILABLE IN APPROXIMATELY 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

...BIG PINEY WAS DRIER AND MUCH WARMER THAN NORMAL IN DECEMBER...

THE AVERAGE TEMPERATURE FOR BIG PINEY IN DECEMBER WAS 17.6 DEGREES
WHICH WAS 4.9 DEGREES ABOVE NORMAL. THIS WAS THE 5TH WARMEST
DECEMBER WITH RECORDS GOING BACK TO 1976. THE WARMEST READING FOR
THE MONTH WAS 56 DEGREES ON THE 1ST...AND THE COLDEST TEMPERATURE
WAS 22 BELOW ZERO ON THE 29TH. A RECORD HIGH OCCURRED ON THE 2ND
WITH 55 DEGREES...WHICH BROKE THE 2009 RECORD OF 52...AND THE 4TH
HIT 52 DEGREES...BREAKING THE 2007 RECORD OF 48.

PRECIPITATION FOR THE MONTH WAS 0.10 INCHES...WHICH IS 43 PERCENT OF
NORMAL...MAKING IT THE 10TH DRIEST DECEMBER ON RECORD. THE WETTEST
24-HOUR PERIOD WAS THE 14TH-15TH...WHEN 0.05 INCHES FELL. THE 27TH
TIED THE 2007 RECORD FOR A TRACE OF PRECIPITATION. THE HIGHEST WIND
GUST WAS 46 MPH FROM THE NORTHWEST ON THE 4TH AND 5TH.


...THE BIG PINEY WY CLIMATE SUMMARY FOR THE MONTH OF DECEMBER 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1976 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             57   12/12/2017
 LOW             -50   12/23/1983
HIGHEST           56   12/01
LOWEST           -22   12/29
AVG. MAXIMUM    32.3               27.6     4.7
AVG. MINIMUM     2.8               -2.2     5.0
MEAN            17.6               12.7     4.9
DAYS MAX >= 90     0
DAYS MAX <= 32    15
DAYS MIN <= 32    31
DAYS MIN <= 0     12

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        1.39   1983
 MINIMUM           T   2019
TOTALS          0.10               0.23   -0.13     0.01
DAILY AVG.      0.00               0.01   -0.01
DAYS >= .01        5
DAYS >= .10        0
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.05   12/14 TO 12/15
 STORM TOTAL    0.04

DEGREE DAYS
HEATING TOTAL   1463               1621    -158
 SINCE 7/1      3750               4374    -624
COOLING TOTAL      0                  0       0
 SINCE 1/1       107                 30      77
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.8
RESULTANT WIND SPEED/DIRECTION   2/300
HIGHEST WIND SPEED/DIRECTION    33/310    DATE  12/05
                                33/240          12/23
HIGHEST GUST SPEED/DIRECTION    46/340    DATE  12/04
                                46/310          12/05

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           15
NUMBER OF DAYS PC             12
NUMBER OF DAYS CLOUDY          4

AVERAGE RH (PERCENT)     70

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                3     SNOW                       7
LIGHT SNOW               13     SLEET                      0
FOG                      15     FOG W/VIS <= 1/4 MILE      5
HAZE                      4

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


LOOKING AHEAD TO JANUARY 2022...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 26 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS -4 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 27
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS -2 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 0.23 INCHES.

$$


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