Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011808
CLMCPR

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1205 PM MDT MON JUL 1 2019

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR THE NATRONA COUNTY
INTERNATIONAL AIRPORT NEAR CASPER FOR THE MONTH OF JUNE 2019...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF JUNE 2019 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

...JUNE FOR CASPER WAS COOLER AND DRIER THAN NORMAL...

THE AVERAGE TEMPERATURE FOR CASPER IN JUNE WAS 60.2 DEGREES. THIS
WAS 2.0 DEGREES BELOW NORMAL. THE WARMEST READING OF THE MONTH WAS
93 DEGREES ON THE 28TH AND 29TH. THE COLDEST READING WAS 25 DEGREES
ON THE 10TH...WHICH ALSO SET A NEW DAILY RECORD...BREAKING THE
PREVIOUS OF 32 DEGREES FROM 1940. TWO OTHER RECORD LOWS WERE BROKEN
IN JUNE...THE 8TH HAD 33 DEGREES TYING THE PREVIOUS FROM 1979...AND
THE 9TH HAD 27 DEGREES...BREAKING THE 1995 RECORD OF 33 DEGREES.

TOTAL PRECIPITATION FOR THE MONTH WAS 0.96 INCHES...WHICH WAS 60
PERCENT OF NORMAL. THE WETTEST 24 HOUR PERIOD OF THE MONTH WAS ON
THE 23RD WHEN 0.39 INCHES FELL. THE HIGHEST WIND GUST WAS 61 MPH ON
THE 20TH.

...THE CASPER WY CLIMATE SUMMARY FOR THE MONTH OF JUNE 2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART
                 VALUE   DATE(S)  VALUE   FROM
                                          NORMAL
................................................
TEMPERATURE (F)
RECORD
 HIGH             102   06/30/1990
                        06/24/1988
 LOW               25   06/10/2019
HIGHEST            93   06/29
                        06/28
LOWEST             25R  06/10
AVG. MAXIMUM     77.1              78.8    -1.7
AVG. MINIMUM     43.3              45.7    -2.4
MEAN             60.2              62.2    -2.0
DAYS MAX >= 90      2
DAYS MAX <= 32      0
DAYS MIN <= 32      2
DAYS MIN <= 0       0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM         4.71   2003
 MINIMUM         0.03   1956
TOTALS           0.96              1.61   -0.65
DAILY AVG.       0.03              0.05   -0.02
DAYS >= .01        10
DAYS >= .10         4
DAYS >= .50         0
DAYS >= 1.00        0
GREATEST
 24 HR. TOTAL    0.39   06/23 TO 06/23

SNOWFALL (INCHES)
TOTALS            0.0               0.1    -0.1
SINCE 7/1        78.5              74.9     3.6
DAYS >= 1.0         0

DEGREE_DAYS
HEATING TOTAL     160               136      24
 SINCE 7/1       7947              7580     367
COOLING TOTAL      21                53     -32
 SINCE 1/1         21                57     -36
.................................................

WIND (MPH)
AVERAGE WIND SPEED              8.8
RESULTANT WIND SPEED/DIRECTION   4/253
HIGHEST WIND SPEED/DIRECTION    43/260    DATE  06/20
HIGHEST GUST SPEED/DIRECTION    61/240    DATE  06/20

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.20
NUMBER OF DAYS FAIR           22
NUMBER OF DAYS PC              7
NUMBER OF DAYS CLOUDY          1

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     MIXED PRECIP                0
HEAVY RAIN                1     RAIN                        3
LIGHT RAIN               14     FREEZING RAIN               0
LT FREEZING RAIN          0     HAIL                        0
HEAVY SNOW                0     SNOW                        0
LIGHT SNOW                0     SLEET                       0
FOG                       6     FOG W/VIS <= 1/4 MILE       0
HAZE                      2

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

LOOKING AHEAD TO JULY 2019...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 85 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 50 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 89
DEGREES...AND THE AVERAGE LOW TEMPERATURE IS 54. THE AVERAGE MONTHLY
PRECIPITATION IS 1.41 INCHES.

$$


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