Climatological Report (Monthly)
Issued by NWS

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000
CXUS55 KRIW 012007
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
207 PM MDT SAT OCT 01 2022

...................................

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF SEPTEMBER 2022...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1998 TO 2022

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             83   09/07/2022
 LOW              13   09/24/2000
HIGHEST           83R  09/07
LOWEST            23   09/10
AVG. MAXIMUM    66.1               60.5     5.6
AVG. MINIMUM    33.0               30.3     2.7
MEAN            49.6               45.4     4.2
DAYS MAX >= 90     0
DAYS MAX <= 32     0
DAYS MIN <= 32    17
DAYS MIN <= 0      0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.09   2013
 MINIMUM        0.21   2018
TOTALS          1.62               1.57    0.05     1.07
DAILY AVG.      0.06               0.05    0.01
DAYS >= .01        9
DAYS >= .10        6
DAYS >= .50        0
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.63   09/21 TO 09/22
 STORM TOTAL    0.38

SNOWFALL (INCHES)
TOTALS            MM                 MM      MM
SINCE 7/1         MM                 MM      MM
SNOWDEPTH AVG.    MM
DAYS >= 1.0       MM

DEGREE DAYS
HEATING TOTAL    455                588    -133
 SINCE 7/1       899               1230    -331
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              2.2
RESULTANT WIND SPEED/DIRECTION   0/310
HIGHEST WIND SPEED/DIRECTION    20/280    DATE  09/08
HIGHEST GUST SPEED/DIRECTION    36/280    DATE  09/08

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)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       1
LIGHT RAIN                2     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.

$$


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