Climatological Report (Monthly)
Issued by NWS

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CXUS55 KRIW 011618
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
1000 AM MDT SAT JUL 01 2023

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF JUNE 2023...

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

...LAKE YELLOWSTONE WAS WETTER THAN NORMAL IN JUNE...

AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN JUNE WAS 47 DEGREES
WHICH IS NORMAL. THE WARMEST READING OF THE MONTH WAS 70 DEGREES ON
THE 6TH. THE COLDEST READING OF THE MONTH WAS ON THE 22ND  WITH 26
DEGREES. NO TEMPERATURE RECORDS WERE BROKEN THIS MONTH.

TOTAL PRECIPITATION AT LAKE YELLOWSTONE WAS 2.9 INCHES... WHICH WAS
122 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH
WAS THE 17TH-18TH WHEN 0.73 INCHES OF PRECIPITATION FELL. THE 14TH
HAD 0.30 INCHES AND BROKE THE 2022 RECORD OF 0.15. THE 18TH HAD 0.72
AND BROKE THE 2018 RECORD OF 0.57. THE 19TH HAD 0.50 INCHES WHICH
BROKE 0.32 FROM 2022. THE 27TH HAD 0.36 AND BROKE THE 2017 RECORD OF
0.33 INCHES. THE HIGHEST WIND GUST WAS 33 MPH FROM THE WEST ON THE
21ST

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF JUNE
2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             83   06/29/2015
 LOW              21   06/04/2011
HIGHEST           70   06/06
LOWEST            26   06/22
AVG. MAXIMUM    59.2               61.1    -1.9
AVG. MINIMUM    34.8               33.0     1.8
MEAN            47.0               47.0    -0.0
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     7
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.34   2010
 MINIMUM        0.18   2021
TOTALS          2.90               2.38    0.52     3.46
DAILY AVG.      0.10               0.08    0.02
DAYS >= .01       17
DAYS >= .10        8
DAYS >= .50        2
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.73   06/17 TO 06/18
 STORM TOTAL    0.72

DEGREE DAYS
HEATING TOTAL    532                538      -6
 SINCE 7/1     11995              12011     -16
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              1.7
RESULTANT WIND SPEED/DIRECTION   1/100
HIGHEST WIND SPEED/DIRECTION    17/270    DATE  06/21
HIGHEST GUST SPEED/DIRECTION    33/270    DATE  06/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           30
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     73

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       2
LIGHT RAIN               17     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     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 JULY 2023...THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 68 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 36 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 74
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 40 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.51 INCHES.

$$


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