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000
CXUS51 KLWX 032050
CLMBWI

CLIMATE REPORT
NATIONAL WEATHER SERVICE BALTIMORE MD/WASHINGTON DC
450 PM EDT FRI AUG 3 2012

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

...THE BALTIMORE MD CLIMATE SUMMARY FOR THE MONTH OF JULY 2012...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1870 TO 2012

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             107   07/10/1936
 LOW               50   07/03/2001
                        07/01/1988
HIGHEST           104   07/18        97       7
                        07/07
LOWEST             64   07/21        56       8
                        07/12
AVG. MAXIMUM     91.7              87.2     4.5     92.9
AVG. MINIMUM     71.2              66.8     4.4     70.4
MEAN             81.4              77.0     4.4
DAYS MAX >= 90     21               9.7    11.3
DAYS MAX <= 32      0               0.0     0.0
DAYS MIN <= 32      0               0.0     0.0
DAYS MIN <= 0       0               0.0     0.0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.03   1889
 MINIMUM         0.30   1955
TOTALS           3.27              4.07   -0.80     2.77
DAILY AVG.       0.11              0.13   -0.02
DAYS >= .01        10              10.0     0.0
DAYS >= .10         6               6.9    -0.9
DAYS >= .50         2               2.6    -0.6
DAYS >= 1.00        1               1.1    -0.1
GREATEST
 24 HR. TOTAL    1.24   07/21

DEGREE_DAYS
HEATING TOTAL       0                 0       0        0
 SINCE 7/1          0                 0       0        0
COOLING TOTAL     517               372     145      526
 SINCE 1/1        980               694     286     1039
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              5.2
HIGHEST WIND SPEED/DIRECTION    24/070    DATE  07/19
HIGHEST GUST SPEED/DIRECTION    35/320    DATE  07/26

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.60
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             21
NUMBER OF DAYS CLOUDY          8

AVERAGE RH (PERCENT)     66

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       4
LIGHT RAIN               13     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      14     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.

&&

THE MAIN STORY THIS JULY WAS THE PERSISTENT HEAT. JULY 2012 TIED
WITH JULY 1934 AND JULY 1949 FOR THE FIFTH HOTTEST MONTH IN THE 141
YEARS OF OFFICIAL BALTIMORE TEMPERATURE RECORDS. THE MONTHLY AVERAGE
TEMPERATURE OF 81.4 DEGREES WAS JUST 0.3 DEGREES BELOW THE WARMEST
MONTH ON RECORD SET IN JULY 2011.

THE LAST THREE JULYS HAVE BEEN IN THE TOP FIVE WARMEST MONTHS ON
RECORD.

THE MONTHLY MAXIMUM TEMPERATURE AVERAGED 91.7 DEGREES THIS JULY...
WHICH WAS TIED WITH JULY 1995 FOR THE FOURTH HIGHEST MONTHLY MAXIMUM
TEMPERATURE FOR ANY MONTH. THE MONTHLY MAXIMUM TEMPERATURE OF 92.9
DEGREES IN JULY 2011 WAS THE WARMEST ON RECORD.

JULY 2012 FEATURED THE MOST NUMBER OF DAYS OF 95 DEGREES OR HIGHER
IN ANY MONTH...WITH 13. THE PREVIOUS HIGHEST NUMBER OF 95-DEGREE
DAYS WAS 12 IN JULY 1988.

THE TEMPERATURE REACHED OR EXCEEDED 100 DEGREES FOUR DAYS THIS JULY.
ONLY JULY 2010 HAD MORE 100-DEGREE DAYS IN A MONTH...WITH FIVE.

THREE DAILY MAXIMUM TEMPERATURE RECORDS AND ONE DAILY HIGH MINIMUM
TEMPERATURE RECORD WERE TIED OR BROKEN IN JULY 2012. THE MOST
NOTABLE OF THE DAILY TEMPERATURE RECORDS WERE THE 104-DEGREE MAXIMUM
TEMPERATURES ON THE 7TH AND 18TH. AUGUST 1918 WAS THE ONLY OTHER
MONTH ON RECORD THAT HAD MULTIPLE DAYS OF 104 DEGREES OR WARMER IN
THE SAME MONTH.

IN BETWEEN ALL OF THE HEAT...A DAILY LOW MAXIMUM TEMPERATURE RECORD
WAS SET ON THE 21ST. THE MAXIMUM TEMPERATURE OF 69 DEGREES ON THE
21ST WAS ALSO THE COOLEST DAILY MAXIMUM TEMPERATURE IN JULY SINCE
IT WAS 69 DEGREES ON 29 JULY 2001.

JULY 2012 WAS THE SEVENTH CONSECUTIVE MONTH OF BELOW-NORMAL
RAINFALL.

$$
JRK/JE