Climatological Report (Monthly)
Issued by NWS Sterling, VA

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000
CXUS51 KLWX 011854
CLMBWI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
254 PM EDT THU JUN 01 2023

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

...THE BALTIMORE MD CLIMATE SUMMARY FOR THE MONTH OF MAY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1871 TO 2023

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE
                                          NORMAL
..............................................................
TEMPERATURE (F)
RECORD
 HIGH             98   05/30/2011
                       05/30/1991
                       05/19/1962
 LOW              32   05/11/1966
HIGHEST           85   05/12         90      -5       96
LOWEST            40   05/04         39       1       39
AVG. MAXIMUM    74.9               75.5    -0.6     76.6
AVG. MINIMUM    50.6               53.3    -2.7     56.5
MEAN            62.8               64.4    -1.6     66.6
DAYS MAX >= 90     0                2.1    -2.1        5
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.0     0.0        0
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        8.71   1989
 MINIMUM        0.37   1986
TOTALS          0.55               3.85   -3.30     5.39
DAILY AVG.      0.02               0.12   -0.10     0.17
DAYS >= .01        8               11.9    -3.9       15
DAYS >= .10        2                7.0    -5.0       10
DAYS >= .50        0                2.7    -2.7        4
DAYS >= 1.00       0                0.9    -0.9        2
GREATEST
 24 HR. TOTAL   0.33   04/30 TO 04/30               1.86
 STORM TOTAL    0.30                                1.25
 (MM/DD(HH))

SNOWFALL (INCHES)
RECORDS
 TOTAL             T   1963
TOTALS           0.0                0.0     0.0      0.0
SINCE 7/1        0.2               19.3   -19.1       MM
DAYS >= TRACE      0                0.0     0.0        0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0

DEGREE DAYS
HEATING TOTAL    100                109      -9       75
 SINCE 7/1      3654               4475    -821       MM
COOLING TOTAL     37                 90     -53      131
 SINCE 1/1        89                111     -22       MM
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.1
HIGHEST WIND SPEED/DIRECTION    23/230
HIGHEST GUST SPEED/DIRECTION    33/240
                                33/340

SKY COVER
AVERAGE SKY COVER           0.55

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                0     RAIN                       1
LIGHT RAIN                9     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       6     FOG W/VIS <= 1/4 MILE      1
HAZE                      6

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

&&

MAY 2023 WAS TIED WITH 1957 FOR THE THIRD DRIEST MAY ON RECORD. ONLY MAY
OF 1986 AND 1964 HAD LESS PRECIPITATION THAN MAY OF 2023. THE REGION WAS ON THE
SUBSIDENT SIDE OF AN UPPER LEVEL TROUGH THAT KEPT THE REGION ON THE COOL AND
DRY SIDE FOR ALMOST THE ENTIRE MONTH.

$$


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