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000
CXUS55 KRIW 012333
CLMP60

CLIMATE REPORT
NATIONAL WEATHER SERVICE RIVERTON WY
533 PM MDT MON MAY 01 2023

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

...THE LAKE YELLOWSTONE WY CLIMATE SUMMARY FOR THE MONTH OF APRIL 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             65   04/29/2007
 LOW             -18   04/13/2022
HIGHEST           59   04/29
LOWEST           -14   04/05
AVG. MAXIMUM    39.3               40.9    -1.6
AVG. MINIMUM    10.0               16.6    -6.6
MEAN            24.6               28.7    -4.1
DAYS MAX >= 90     0
DAYS MAX <= 32    10
DAYS MIN <= 32    30
DAYS MIN <= 0      9

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        4.59   2011
 MINIMUM        0.76   2008
TOTALS          1.90               2.28   -0.38     3.50
DAILY AVG.      0.06               0.08   -0.02
DAYS >= .01       14
DAYS >= .10        7
DAYS >= .50        1
DAYS >= 1.00       0
GREATEST
 24 HR. TOTAL   0.62   04/12 TO 04/13
 STORM TOTAL    0.55

DEGREE DAYS
HEATING TOTAL   1203               1088     115
 SINCE 7/1     10766              10651     115
COOLING TOTAL      0                  0       0
 SINCE 1/1         0                  0       0
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              2.7
RESULTANT WIND SPEED/DIRECTION   0/260
HIGHEST WIND SPEED/DIRECTION    22/280    DATE  04/01
HIGHEST GUST SPEED/DIRECTION    38/300    DATE  04/01

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)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       0
LIGHT RAIN                2     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW                8     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.

$$