Climatological Report (Monthly)
Issued by NWS Wilmington, OH

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839
CXUS51 KILN 012102 CCA
CLMDAY

CLIMATE REPORT...CORRECTED...
NATIONAL WEATHER SERVICE WILMINGTON OH
140 AM EDT TUE JUN 01 2021

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

...THE DAYTON OH CLIMATE SUMMARY FOR THE MONTH OF MAY 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1869 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             98   05/29/1911
                       05/28/1911
 LOW              28   05/09/2020
                       05/07/1974
                       05/04/1903
HIGHEST           88   05/24         72      16       88  05/24
                       05/25
                                                          05/26
LOWEST            32   05/01         51     -19       28  05/09
AVG. MAXIMUM    71.3               74.2    -2.9     70.5
AVG. MINIMUM    50.5               53.8    -3.3     50.9
MEAN            60.9               64.0    -3.1     60.7
DAYS MAX >= 90     0                0.2    -0.2        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                0.1     0.9        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
TOTALS          4.26               4.51   -0.25     5.78
DAILY AVG.      0.14               0.15   -0.01     0.19
DAYS >= .01       12               14.1    -2.1       17
DAYS >= .10        8                9.1    -1.1       10
DAYS >= .50        3                2.9     0.1        2
DAYS >= 1.00       2                0.9     1.1        2
GREATEST
 24 HR. TOTAL   1.27   05/08 TO 05/09               2.97  05/18 TO 05/19
 STORM TOTAL    1.21                                  MM
 (MM/DD(HH))            MM

SNOWFALL (INCHES)
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1       30.4               25.0     5.4     19.4
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 24 HR TOTAL     0.0    MM                           0.0
 STORM TOTAL     0.0                                  MM
 (MM/DD(HH))            MM

DEGREE DAYS
HEATING TOTAL    208                125      83      204
 SINCE 7/1      5018               5135    -117       MM
COOLING TOTAL     89                 94      -5       81
 SINCE 1/1       109                111      -2       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.5
RESULTANT WIND SPEED/DIRECTION   1/270
HIGHEST WIND SPEED/DIRECTION    31/060    DATE  05/28
HIGHEST GUST SPEED/DIRECTION    39/070    DATE  05/28

SKY COVER
AVERAGE SKY COVER           0.64

AVERAGE RH (PERCENT)     58

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              4     MIXED PRECIP               0
HEAVY RAIN                4     RAIN                       5
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       9     FOG W/VIS <= 1/4 MILE      1
HAZE                      9

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

$$



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