Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
425 PM EDT FRI SEP 2 2016

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE MONTH OF AUGUST 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1868 TO 2016

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             101   08/02/1975
 LOW               29   08/31/1965
HIGHEST            99   08/12        92       7       94  08/18
LOWEST             46   08/23        42       4       49  08/07
AVG. MAXIMUM     86.9              80.9     6.0     84.2
AVG. MINIMUM     58.8              56.1     2.7     57.6
MEAN             72.8              68.5     4.3     70.9
DAYS MAX >= 90      9               2.7     6.3        4
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         9.00   1892
 MINIMUM         0.06   1996
TOTALS           1.89              3.18   -1.29     5.56
DAILY AVG.       0.06              0.10   -0.04     0.19
DAYS >= .01         9               9.8    -0.8        7
DAYS >= .10         7               6.2     0.8        5
DAYS >= .50         1               2.1    -1.1        3
DAYS >= 1.00        0               0.8    -0.8        2
GREATEST
 24 HR. TOTAL    0.80   08/21 TO 08/22

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

DEGREE_DAYS
HEATING TOTAL       1                31     -30        0
 SINCE 7/1         12                48     -36        8
COOLING TOTAL     252               139     113      177
 SINCE 1/1        624               413     211      502
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              4.8
HIGHEST WIND SPEED/DIRECTION    31/320    DATE  08/17
HIGHEST GUST SPEED/DIRECTION    45/290    DATE  08/17

SKY COVER
AVERAGE SKY COVER           0.30

AVERAGE RH (PERCENT)     65

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              3     HEAVY RAIN                 3
RAIN                      6     LIGHT RAIN                12
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       13
FOG W/VIS <= 1/4 MILE     4     HAZE                       1

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

&&

THE WARM WEATHER THAT BEGAN TRENDING AT THE END OF JULY CONTINUED
THROUGH MUCH OF AUGUST. IN JUST THE FIRST TWO WEEKS OF AUGUST THERE
WERE 6 DAYS THAT SAW THE TEMPERATURE RISE ABOVE 90 DEGREES. THE HEAT
PEAKED IN THE MIDDLE OF AUGUST WITH THE HOTTEST TEMPERATURE ON
AUGUST 12 WHEN THE TEMPERATURE SOARED TO 99 DEGREES, THE HOTTEST
AUGUST TEMPERATURE IN MORE THAN 40 YEARS. ALTHOUGH THE HEAT WAS NOT
AS INTENSE, ABOVE NORMAL TEMPERATURES PERSISTED THROUGH THE END OF
THE MONTH WITH ONLY A FEW DAYS OF MUCH NEEDED RAINFALL.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 72.8 DEGREES WHICH WAS 4.3
DEGREES ABOVE NORMAL AND TIED FOR THE SECOND WARMEST AUGUST ON
RECORD. THE WARMEST AUGUST WAS 73.5 DEGREES IN 1872 WHILE THE
COOLEST WAS IN 1903 AT ONLY 61.1 DEGREES. THE FOLLOWING TABLE LISTS
THE WARMEST AUGUST AVERAGE TEMPERATURES.

WARMEST AUGUST AVERAGE TEMPERATURE (SINCE 1868)
RANK  TEMP  YEAR
1     73.5  1872
2     72.8  2016 <===
      72.8  1937
4     72.3  1973
      72.3  1870
6     72.1  2001
7     72.0  1939
      72.0  1877
9     71.5  1938
10    71.4  1920

ON AUGUST 12, THE TEMPERATURE SOARED TO 99 DEGREES. THIS WAS THE
FOURTH HOTTEST TEMPERATURE EVER RECORDED IN THE MONTH OF AUGUST. IN
FACT THERE WERE TWO DAYS THIS AUGUST THAT CRACKED THE TOP TEN
HOTTEST TEMPERATURES RECORDED IN AUGUST. THE FOLLOWING TABLE LISTS
THE HOTTEST AUGUST TEMPERATURES.

HOTTEST TEMPERATURES IN AUGUST (SINCE 1868)
RANK  TEMP  DATE
1     101   AUG 2, 1975
2     100   AUG 5, 1955
      100   AUG 26, 1948
4      99   AUG 12, 2016 <===
       99   AUG 14, 2002
       99   AUG 13, 1944
       99   AUG 12, 1944
       99   AUG 1, 1917
9      98   AUG 11, 2016 <===
       98   SEVERAL OTHERS MOST RECENTLY AUG 9, 2001

THERE WERE A TOTAL OF 9 DAYS THIS MONTH ON WHICH THE TEMPERATURE HIT
90 DEGREES OR HOTTER. THIS TIES FOR THE 4TH MOST SUCH DAYS ON
RECORD. THE FOLLOWING TABLE LISTS THE MOST 90+ DEGREE DAYS IN AUGUST.

NUMBER OF DAYS 90 DEGREES OR HOTTER IN AUGUST (SINCE 1868)
RANK  DAYS  YEAR
1      13   2002
2      11   1988
3      10   1944
4       9   2016 <===
        9   1955
        9   1870
7       8   1978
        8   1949
        8   1947
        8   1876

A TOTAL OF 1.89 INCHES OF RAIN FELL WHICH WAS 1.29 INCHES BELOW
NORMAL AND THE DRIEST AUGUST SINCE 2007. THIS ALSO MARKED THE 6TH
STRAIGHT MONTH WITH BELOW NORMAL PRECIPITATION. THE LAST MONTH OF
ABOVE NORMAL PRECIPITATION WAS IN FEBRUARY. THE HEAVIEST RAIN FELL
ON AUG 21 AND 22 WHEN 0.80 INCHES WAS MEASURED. THE DROUGHT WHICH
BEGAN EARLIER THIS SUMMER PERSISTED THROUGH THE MONTH. THE DRIEST
AUGUST ON RECORD WAS 1996 WHEN ONLY 0.06 INCHES FELL. THE WETTEST
WAS 1892 WITH 9.00 INCHES.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN AUGUST 2016...
DATE RECORD                                  PREVIOUS
12   99 - WARMEST HIGH TEMPERATURE           99 IN 1944 /TIED/

**NOTE**
CHANGES TO THE GROUND COVER NEAR THE TEMPERATURE SENSOR AT THE
CONCORD AIRPORT LIKELY CAUSED THE AFTERNOON TEMPERATURE TO READ A
DEGREE OR TWO TOO HIGH ON MANY DAYS DURING AUGUST. IT IS IMPOSSIBLE
TO KNOW EXACTLY HOW MUCH THIS AFFECTED CONCORD`S TEMPERATURE
READINGS, BUT IT IS LIKELY THAT THIS CHANGE CAUSED A SLIGHT WARM
BIAS IN TEMPERATURES. THIS PROBLEM WAS IDENTIFIED AND HAS BEEN
ADDRESSED BY MAINTENANCE STAFF.

$$

KIMBLE



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