Climatological Report (Seasonal)
Issued by NWS Northern Indiana

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CXUS53 KIWX 010651
CLSFWA

CLIMATE REPORT
NATIONAL WEATHER SERVICE NORTHERN INDIANA
250 AM EDT THU SEP 1 2011

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

...THE FORT WAYNE CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2011 TO 8/31/2011...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1897 TO 2011

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH             106   06/25/1988
                        07/14/1936
                        07/22/1934
 LOW               36   06/02/1910
HIGHEST           100   07/21        82      18       95
LOWEST             50   08/30        61     -11       49
AVG. MAXIMUM     86.0              82.5     3.5     85.4
AVG. MINIMUM     63.9              60.9     3.0     65.1
MEAN             75.0              71.7     3.3
DAYS MAX >= 90     31              11.6    19.4       21
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        18.70   1986
 MINIMUM         5.10   1984
TOTALS           7.60             12.04   -4.44    11.21
DAILY AVG.       0.08              0.13   -0.05     0.12
DAYS >= .01        28              30.1    -2.1       30
DAYS >= .10        15              19.9    -4.9       20
DAYS >= .50         5               8.0    -3.0        8
DAYS >= 1.00        1               3.4    -2.4        4
GREATEST
 24 HR. TOTAL    1.66   MM

SNOWFALL (INCHES)
RECORDS
 TOTAL             MM   MM
 24 HR TOTAL       MM
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= TRACE       0               0.0     0.0        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0
 24 HR TOTAL      0.0   MM

DEGREE_DAYS
HEATING TOTAL       6                41     -35        3
 SINCE 7/1          0                12     -12        0
COOLING TOTAL     952               660     292      973
 SINCE 1/1       1049               717     332     1103
..............................................................

WIND (MPH)
AVERAGE WIND SPEED              6.3
HIGHEST WIND SPEED/DIRECTION    44/290    DATE  08/09
HIGHEST GUST SPEED/DIRECTION    64/290    DATE  08/09

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR           17
NUMBER OF DAYS PC             57
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN               11     RAIN                       6
LIGHT RAIN               36     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      46     FOG W/VIS <= 1/4 MILE      2
HAZE                     41

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

&&

...HEAT WAVE BRINGS RECORD WARM TEMPERATURES AND BELOW NORMAL
PRECIPITATION THIS SUMMER AT FORT WAYNE...

A RECORD HEAT WAVE ACROSS THE REGION IN JULY HELPED MAKE SUMMER 2011
THE 6TH WARMEST SUMMER SEASON ON RECORD AT FORT WAYNE. THE AVERAGE
MEAN TEMPERATURE DURING THE SUMMER WAS 75.0...WHICH IS 3.3 DEGREES
ABOVE NORMAL. THE AVERAGE HIGH TEMPERATURE OF 86.0 DEGREES WAS 3.5
DEGREES ABOVE NORMAL...WHILE THE AVERAGE LOW TEMPERATURE OF 63.9 WAS
3.0 DEGREES ABOVE NORMAL.

THE SUMMER OF 2011 SAW SOME OF THE WARMEST TEMPERATURES IN OVER A
DECADE AT FORT WAYNE. ON JUNE 4TH THE HIGH TEMPERATURE REACHED 97
DEGREES...WHICH AT THE TIME WAS THE WARMEST TEMPERATURE AT FORT
WAYNE SINCE JULY 31ST 1999...WHEN THE TEMPERATURE REACHED 98
DEGREES. IT WAS ALSO THE THIRD EARLIEST DATE ON RECORD WHEN THE HIGH
REACHED AT LEAST 97 DEGREES...THE ONLY EARLIER DATES BEING JUNE 1ST
AND 2ND OF 1934...WITH TEMPERATURES OF 101 AND 99 RESPECTIVELY. SOON
AFTER...THE HIGH TEMPERATURE REACHED 97 DEGREES AGAIN ON BOTH JUNE
7TH AND 8TH. ALL THREE OF THE 97 DEGREE DAYS IN JUNE TIED OR BROKE
PREVIOUS DAILY HIGH TEMPERATURE RECORDS.

THE EARLY JUNE WARM SPELL WAS FOLLOWED BY A MID JUNE COOL
SPELL...AND THE LAST HALF OF THE MONTH FINISHED UP WITH NEAR NORMAL
TEMPERATURES. THE FIRST HALF OF JULY SAW MAINLY ABOVE NORMAL
TEMPERATURES...BUT BEGINNING ON JULY 16TH A HEAT WAVE WOULD
ENCOMPASS THE REGION.

A MASSIVE RIDGE OF HIGH PRESSURE DEVELOPED ACROSS THE CENTRAL UNITED
STATES IN THE SECOND WEEK OF JULY...WITH OPPRESSIVE AND RECORD
BREAKING HEAT EXTENDING THROUGH THE PLAINS NORTHWARD INTO CANADA. BY
THE MIDDLE OF THE MONTH...THIS RIDGE OF HIGH PRESSURE BEGAN TO DRIFT
EASTWARD ACROSS THE REGION...AMASSING A STRING OF 8 DAYS IN A ROW OF
TEMPERATURES REACHING 91 DEGREES OR GREATER AT FORT WAYNE. THE HEAT WAVE
BEGAN ON JULY 16TH WITH A HIGH OF 91 DEGREES...AND EXTENDED THROUGH
JULY 23RD. DURING THIS STRING...HIGH TEMPERATURES ON THE 20TH...21ST
AND 22ND REACHED 98...100 AND 97 RESPECTIVELY.

FROM JULY 16TH UNTIL THE END OF THE MONTH...THE HIGH TEMPERATURE
REACHED AT LEAST 91 DEGREES ON 14 OUT OF 16 DAYS. OVERALL...THE HIGH
TEMPERATURE REACHED 90 DEGREES 22 OUT OF THE 31 DAYS IN JULY...WHICH
IS THE HIGHEST AMOUNT OF 90 PLUS DEGREE DAYS DURING ANY MONTH ON
RECORD AT FORT WAYNE.

SURPRISINGLY...NO RECORD HIGH TEMPERATURES WERE BROKEN DURING THE
MONTH OF JULY. WHAT MADE THE OPPRESSIVE HEAT SO SIGNIFICANT DURING
THIS MONTH WAS THE WARM OVERNIGHT LOWS AND THE EXTREME HUMIDITY.
DURING MUCH OF THE HEAT WAVE...LOW TEMPERATURES AT FORT WAYNE ONLY
DROPPED INTO THE MID TO UPPER 70S...WITH TWO DAILY HIGH MINIMUM
TEMPERATURE RECORDS SET. THESE WARM OVERNIGHT LOWS HELPED KEEP THE
AVERAGE DAILY TEMPERATURES HIGH...LEADING TO JULY 2011 BECOMING NOT
ONLY THE WARMEST JULY ON RECORD...BUT THE WARMEST MONTH OVERALL ON
RECORD AS WELL. EXTREMELY MOIST AIR ALSO PUSHED HEAT INDICES WELL
INTO THE 100S THROUGHOUT THE HEAT WAVE.

THE JULY WARM SPELL PUSHED INTO THE FIRST WEEK OF AUGUST...BEFORE A
PATTERN CHANGE BROUGHT A STRING OF NEAR TO BELOW NORMAL TEMPERATURES
THROUGH THE MIDDLE OF THE MONTH. THE LAST HALF OF AUGUST ENDED WITH
OVERALL NEAR NORMAL TEMPERATURES...WITH A FEW RANDOM DAYS OF ABOVE
OR BELOW NORMAL TEMPERATURES. OVERALL...THERE WERE 31 DAYS WHERE THE
HIGH TEMPERATURE REACHED 90 PLUS DEGREES...THE MOST SINCE 1988 WHEN
THERE WHERE 44 DAYS OF 90 PLUS DEGREES DURING SUMMER.

THE MASSIVE RIDGE THAT BROUGHT THE EXCESSIVE HEAT THROUGHOUT THE
MONTH OF JULY ALSO BROUGHT DRIER CONDITIONS TO THE REGION...WITH
TYPICAL SUMMER CONVECTIVE SYSTEMS BEING STEERED WELL NORTH OF THE
AREA FOR MUCH OF THE SUMMER. DURING THE SUMMER...ONLY 7.60 INCHES
OF  PRECIPITATION FELL...WHICH IS 4.44 INCHES BELOW NORMAL. THIS
MAKES SUMMER 2011 THE 24TH DRIEST SUMMER ON RECORD AT FORT WAYNE.

$$

GREENAWALT/LASHLEY






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