228
CXUS55 KRIW 011932
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
121 PM MDT SUN SEP 01 2024

...PRELIMINARY MONTHLY CLIMATE SUMMARY FOR LAKE YELLOWSTONE FOR THE
MONTH OF AUGUST 2024...

...OFFICIAL CLIMATE DATA FOR THE MONTH OF AUGUST 2024 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 WARMER AND DRIER THAN NORMAL IN AUGUST...

AVERAGE TEMPERATURE FOR LAKE YELLOWSTONE IN AUGUST WAS 54.7 DEGREES
WHICH IS 0.8 DEGREES ABOVE NORMAL. THE WARMEST READING OF THE MONTH
WAS 84 DEGREES ON THE 3RD AND BROKE 81 DEGREES FROM 2001. THE 2ND
HIGH OF 82 DEGREES TIED 2020 AND 2016. THE COLDEST READING OF THE
MONTH WAS 26 DEGREES ON THE 29TH AND BROKE THE 2021 RECORD OF 28
DEGREES.

TOTAL PRECIPITATION AT LAKE YELLOWSTONE WAS 1.25 INCHES...WHICH WAS
93 PERCENT OF NORMAL. THE WETTEST 24-HOUR PERIOD DURING THE MONTH
WAS THE 13TH-14TH WHEN 0.30 INCHES OF PRECIPITATION FELL. NO
PRECIPITATION RECORD WERE BROKEN THIS MONTH. THE HIGHEST WIND GUST
WAS 39 MPH FROM THE WEST ON THE 6TH.

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF AUGUST
2024...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2024

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             85   08/17/2020
 LOW              25   08/31/2005
HIGHEST           84   08/03
LOWEST            26   08/29
AVG. MAXIMUM    71.3               70.7     0.6
AVG. MINIMUM    38.1               37.0     1.1
MEAN            54.7               53.9     0.8
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32     3
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.37   2023
 MINIMUM        0.13   2012
TOTALS          1.25               1.34   -0.09     4.37
DAILY AVG.      0.04               0.04   -0.00
DAYS >= .01       13
DAYS >= .10        6
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.30   08/13 TO 08/14
 STORM TOTAL    0.29


DEGREE DAYS
HEATING TOTAL    315                346     -31
 SINCE 7/1       577                641     -64
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              2.4
RESULTANT WIND SPEED/DIRECTION   0/340
HIGHEST WIND SPEED/DIRECTION    20/290    DATE  08/04
HIGHEST GUST SPEED/DIRECTION    39/280    DATE  08/06

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.00
NUMBER OF DAYS FAIR           18
NUMBER OF DAYS PC              0
NUMBER OF DAYS CLOUDY          0

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN               13     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 SEPTEMBER 2024. THE AVERAGE HIGH TEMPERATURE ON THE
FIRST OF THE MONTH IS 67 DEGREES...AND THE AVERAGE LOW TEMPERATURE
IS 33 DEGREES. THE AVERAGE HIGH BY THE END OF THE MONTH IS 53
DEGREES AND THE AVERAGE LOW TEMPERATURE IS 27 DEGREES. THE AVERAGE
MONTHLY PRECIPITATION IS 1.57 INCHES.

$$