Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011816
CLMCPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1103 AM MST WED FEB 01 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR CASPER FOR THE MONTH OF
JANUARY 2023..

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JANUARY 2023 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

JANUARY WAS COLDER AND WETTER THAN NORMAL FOR CASPER...

THE AVERAGE TEMPERATURE FOR CASPER IN JANUARY WAS 20.9 DEGREES WHICH
WAS 4.2 DEGREES BELOW NORMAL. THE WARMEST READING FOR THE MONTH WAS
39 DEGREES ON THE 13TH...14TH AND 15TH. THE COLDEST TEMPERATURE WAS
21 DEGREES BELOW ZERO ON THE 30TH. NO TEMPERATURE RECORDS WERE
BROKEN THIS MONTH.

PRECIPITATION FOR THE MONTH WAS 1.99 INCHES...WHICH IS 406 PERCENT
OF NORMAL THIS WAS THE WETTEST JANUARY ON RECORD. THE WETTEST 24-
HOUR PERIOD WAS ON THE 10TH-11TH WHEN 0.71 INCHES FELL. THE 11TH HAD
0.55 INCHES BREAKING THE 2007 RECORD OF 0.07. THIS ALSO SET A NEW
ALL-TIME DAILY RECORD FOR THE MONTH BEATING THE 12TH 2018 OF 0.53
INCHES. HERE ARE ADDITIONAL PRECIPITATION RECORDS.

DATE       LIQUID      OLD       YEAR
1ST         0.27       0.13    1960/1996
2ND         0.23       0.19      1993
10TH        0.16       0.19      1976
18TH        0.17       0.12      1980

SNOWFALL FOR JANUARY WAS 37.1 INCHES WHICH IS 28.1 INCHES ABOVE
NORMAL. THIS WAS THE SECOND SNOWIEST JANUARY ON RECORD. THE SNOWIEST
DAY WAS ON THE 28TH WITH 9 INCHES. THIS BROKE THE 1970 RECORD OF 5.4
INCHES. THE 1ST HAD 7.3 INCHES WHICH BROKE THE 1996 RECORD OF 3.7
AND THE 2ND HAD 5.9 INCHES WHICH BROKE 4.2 INCHES FROM 1950. THE
11TH HAD 5.8 INCHES WHICH BROKE THE 2007 RECORD OF 5.1. THE HIGHEST
WIND GUST WAS 55 MPH FROM THE SOUTHWEST ON THE 9TH.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF JANUARY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             60   01/31/1971
                       01/30/1971
 LOW             -40   01/14/1972
                       01/13/1972
                       01/24/1949
HIGHEST           39   01/13
                       01/14
                       01/15
LOWEST           -21   01/30
AVG. MAXIMUM    27.4               35.2    -7.8
AVG. MINIMUM    14.3               15.0    -0.7
MEAN            20.9               25.1    -4.2
DAYS MAX >= 90     0
DAYS MAX <= 32    21
DAYS MIN <= 32    31
DAYS MIN <= 0      4

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        1.42   1987
 MINIMUM        0.03   2004
TOTALS          1.99               0.49    1.50     0.90
DAILY AVG.      0.06               0.02    0.04
DAYS >= .01       11
DAYS >= .10        7
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.71   01/10 TO 01/11
 STORM TOTAL    0.55

SNOWFALL (INCHES)
TOTALS          37.0                9.0    28.0
SINCE 7/1       69.6               37.4    32.2
SNOWDEPTH AVG.     6
DAYS >= 1.0        9

DEGREE DAYS
HEATING TOTAL   1359               1237     122
 SINCE 7/1      4476               4293     183
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              15.0
RESULTANT WIND SPEED/DIRECTION  10/220
HIGHEST WIND SPEED/DIRECTION    43/210    DATE  01/09
HIGHEST GUST SPEED/DIRECTION    55/210    DATE  01/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.48
NUMBER OF DAYS FAIR           12
NUMBER OF DAYS PC             11
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                1     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                1     SNOW                       6
LIGHT SNOW               18     SLEET                      0
FOG                      14     FOG W/VIS <= 1/4 MILE      3
HAZE                      4

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

LOOKING AHEAD TO FEBRUARY 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 36 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 15 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 42
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 18. THE AVERAGE MONTHLY
PRECIPITATION IS 0.56 INCHES. THE AVERAGE MONTHLY SNOWFALL IS 10.9
INCHES.

$$


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