Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
641 PM EDT SAT SEP 3 2016

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

...THE CONCORD NH CLIMATE SUMMARY FOR THE SUMMER SEASON, FROM
6/1/2016 TO 8/31/2016...

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             102   07/03/1966
                        07/04/1911
 LOW               29   08/31/1965
HIGHEST            99   08/12        95       4       96  07/29
LOWEST             46   08/23        37       9       38  06/07
                        06/11
AVG. MAXIMUM     84.1              80.2     3.9     81.0
AVG. MINIMUM     56.9              55.5     1.4     56.0
MEAN             70.5              67.8     2.7     68.5
DAYS MAX >= 90     22               9.9    12.1       10
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        20.49   1897
 MINIMUM         2.74   1999
TOTALS           5.48             10.61   -5.13    12.89
DAILY AVG.       0.06              0.12   -0.06     0.15
DAYS >= .01        26              33.4    -7.4       35
DAYS >= .10        16              20.2    -4.2       16
DAYS >= .50         3               7.0    -4.0        8
DAYS >= 1.00        0               2.6    -2.6        5
GREATEST
 24 HR. TOTAL    0.95   06/05

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      53               133     -80      103
 SINCE 7/1         12                48     -36        8
COOLING TOTAL     584               395     189      436
 SINCE 1/1        624               413     211      502
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.3
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             10     HEAVY RAIN                11
RAIN                     16     LIGHT RAIN                35
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     FOG                       36
FOG W/VIS <= 1/4 MILE     7     HAZE                       6

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

&&

THE SUMMER BEGAN WITH A PERIOD OF COOL, WET WEATHER. ON JUNE 5, 0.95
INCHES OF RAIN FELL AT CONCORD. THIS ENDED UP BEING THE HEAVIEST
RAIN ALL SUMMER AS DROUGHT CONDITIONS DEVELOPED AND INTENSIFIED AS
THE SUMMER WENT ON. FROM MID JUNE THROUGH MID JULY, THE WEATHER
PATTERN CONSISTED OF GRADUALLY WARMING TEMPERATURES WHICH WERE
TYPICALLY FOLLOWED BY A COLD FRONT BRINGING COOLER AND DRIER AIR
BACK INTO THE AREA EVERY FEW DAYS. THIS BEGAN TO CHANGE IN MID JULY
WHEN EASTERLY WINDS BROUGHT COOL, WET WEATHER TO THE AREA. THE HIGH
TEMPERATURE ON JULY 9 WAS ONLY 63 DEGREES, THE COOLEST JULY DAY
SINCE 2009. THIS COOL WEATHER WAS ONLY TEMPORARY AS A SHIFT TOWARD
WARMER WEATHER BEGAN SOON AFTERWARDS, LASTING THROUGH MUCH OF
AUGUST. FROM JULY 22 THRU JULY 28 THE TEMPERATURE TOPPED 90 DEGREES
ON 6 OUT OF 7 DAYS. THE HOT WEATHER RETURNED IN AUGUST WHEN THE
TEMPERATURE REACHED 98 DEGREES ON AUGUST 11 AND 99 ON AUGUST 12.
ALTHOUGH WARM WEATHER CONTINUED THROUGH THE REST OF AUGUST, THE
BRUTALLY HOT WEATHER DID NOT RETURN. OVERALL IT WAS THE 4TH WARMEST
AND 9TH DRIEST SUMMER ON RECORD AT CONCORD.

THE AVERAGE TEMPERATURE FOR THE SUMMER WAS 70.5 DEGREES WHICH WAS
2.7 DEGREES ABOVE NORMAL AND THE 4TH WARMEST ON RECORD. THE WARMEST
SUMMER WAS IN 1872 WHEN THE AVERAGE TEMPERATURE WAS 72.3 DEGREES.
THE COOLEST WAS 1903 AT ONLY 62.6 DEGREES. THE FOLLOWING TABLE LISTS
THE WARMEST SUMMERS AT CONCORD.

WARMEST AVERAGE TEMPERATURE IN SUMMER (SINCE 1868)
RANK  TEMP  YEAR
1     72.3  1872
2     72.1  1876
3     71.7  1870
4     70.5  2016 <===
5     70.4  1877
6     70.1  1949
7     70.0  2005
      70.0  1938
9     69.9  1955
      69.9  1937

THE TEMPERATURE HIT 99 DEGREES ON AUGUST 12, TYING AS THE 4TH
HOTTEST TEMPERATURE OBSERVED IN THE MONTH OF AUGUST. THE HIGH OF 98
ON AUGUST 11 ALSO MADE THE TOP TEN. THE FOLLOWING TABLE LISTS THE
HOTTEST TEMPERATURES RECORDED IN AUGUST AT CONCORD.

HOTTEST TEMPERATURES IN AUGUST (SINCE 1868)
RANK  TEMP  YEAR
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 OTHER OCCURRENCES MOST RECENTLY AUG 9, 2001

THERE WERE 71 DAYS THIS SUMMER WHICH TOPPED 80 DEGREES, THE MOST IN
50 YEARS. IN ADDITION, 22 DAYS TOPPED 90 DEGREES, TYING FOR THE 6TH
MOST ON RECORD. THE FOLLOWING TABLES LIST THE MOST DAYS WITH HIGH
TEMPERATURES OF 80 DEGREES OR HIGHER AND 90 DEGREES OR HIGHER.

SUMMER DAYS REACHING OR EXCEEDING 80 AND 90 DEGREES (SINCE 1868)
      80+ DEGREES     90+ DEGREES
RANK  DAYS  YEAR      DAYS  YEAR
1      74   1870       29   1955
2      72   1966       26   1870
3      71   2016 <===  25   1988
4      67   1952       25   1966
5      66   1995       24   1949
6      66   1950       22   2016 <===
7      66   1949       22   1978
8      65   2005       21   2010
9      64   2012       21   2002
10     63   1993       21   1952
       63   1882       21   1876

A TOTAL OF 5.48 INCHES OF RAIN FELL THIS SUMMER WHICH WAS 5.13
INCHES BELOW NORMAL AND THE 9TH DRIEST ON RECORD. THE HEAVIEST RAIN
WAS ON JUNE 5 WHEN 0.95 INCHES FELL. THE DRIEST SUMMER ON RECORD WAS
IN 1999 WHEN ONLY 2.74 INCHES FELL. THE WETTEST WAS 1897 WITH 20.49
INCHES. THE FOLLOWING TABLE LISTS THE DRIEST SUMMERS ON RECORD AT
CONCORD.

DRIEST SUMMERS (SINCE 1868)
RANK  PRECIP  YEAR
1      2.74   1999
2      3.65   1913
3      4.35   1994
4      4.69   1869
5      4.71   1919
6      4.83   1870
7      5.43   1974
       5.43   1894
9      5.48   2016 <===
10     5.61   1932

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

**NOTE**
CHANGES TO THE GROUND COVER NEAR THE TEMPERATURE SENSOR AT THE
CONCORD AIRPORT ON JULY 13 LIKELY CAUSED THE AFTERNOON TEMPERATURE
TO READ A DEGREE OR TWO TOO HIGH ON MANY DAYS THROUGH THE END OF
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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