Climatological Report (Annual)
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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
736 PM EST THU JAN 5 2017

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

...THE MANCHESTER CLIMATE SUMMARY FOR THE YEAR OF 2016...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1948 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             103   07/22/2011
 LOW              -20   02/13/1967
HIGHEST            97   08/11        97       0       95  07/29
LOWEST            -12   02/14        -5      -7       -9  02/21
AVG. MAXIMUM     61.5              58.7     2.8     59.8
AVG. MINIMUM     41.8              39.7     2.1     39.6
MEAN             51.6              49.2     2.4     49.7
DAYS MAX >= 90     22              10.9    11.1       18
DAYS MAX <= 32     28              34.8    -6.8       50
DAYS MIN <= 32    119             130.1   -11.1      124
DAYS MIN <= 0       4               3.0     1.0       14

PRECIPITATION (INCHES)
TOTALS          27.67             44.58  -16.91    27.45
DAILY AVG.       0.08              0.12   -0.04     0.07
DAYS >= .01       113             131.1   -18.1      111
DAYS >= .10        61              78.2   -17.2       58
DAYS >= .50        17              28.4   -11.4       21
DAYS >= 1.00        3               9.5    -6.5        2
GREATEST
 24 HR. TOTAL    2.69   09/19 TO 09/19

SNOWFALL (INCHES)
TOTALS           50.9                               75.1
SINCE 7/1        23.5                                3.7
SNOWDEPTH AVG.      1
DAYS >= TRACE      39                                 55
DAYS >= 1.0        12                                 16
GREATEST
 SNOW DEPTH         8   12/30
                        12/18
                        02/16
 24 HR TOTAL      8.0   12/29 TO 12/29

DEGREE_DAYS
HEATING TOTAL    5740              6394    -654     6312
 SINCE 7/1       2172              2368    -196     1800
COOLING TOTAL     971               641     330      902

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

WIND (MPH)
AVERAGE WIND SPEED              6.9
HIGHEST WIND SPEED/DIRECTION    35/330    DATE  07/23
HIGHEST GUST SPEED/DIRECTION    52/330    DATE  07/23

SKY COVER
AVERAGE SKY COVER           0.60

AVERAGE RH (PERCENT)     61

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             12     HEAVY RAIN                17
RAIN                     35     LIGHT RAIN               125
FREEZING RAIN             0     LT FREEZING RAIN           8
HEAVY SNOW                6     SNOW                      15
LIGHT SNOW               36     FOG                      130
FOG W/VIS <= 1/4 MILE    28     HAZE                      43

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

$$

2016 BEGAN WITH A PERIOD OF RELATIVELY WARM WEATHER THROUGH MUCH OF
JANUARY. THE SNOW PACK WAS INCONSISTENT THROUGH THE WINTER AS
SNOWFALL WAS INFREQUENT AND PERIODS OF WARM WEATHER IN BETWEEN
SNOWSTORMS PREVENTED THE SNOW FROM PILING UP. BY THE END OF JANUARY
THE WARM WEATHER WAS BEGINNING TO BUILD AND PEAKED WITH TEMPERATURES
NEAR 60 DURING THE FIRST FEW DAYS OF FEBRUARY. THIS WARMTH CAME TO
AN END ON FEBRUARY 5 WHEN A SNOWSTORM BROUGHT 7.7 INCHES OF SNOWFALL
AND USHERED IN COLDER AIR. A SERIES OF COLD FRONTS BROUGHT
PROGRESSIVELY COLDER AIR AND MORE LIGHT SNOW FOR SEVERAL DAYS. BY
VALENTINES DAY THE COLD WAS AT ITS PEAK. THE TEMPERATURE THAT DAY
DROPPED ALL THE WAY TO 12 DEGREES BELOW ZERO, THE COLDEST
TEMPERATURE SINCE MODERN RECORDS BEGAN IN 1998. BUT THE COLD WAS
ONLY TEMPORARY. AFTER DROPPING TO 5 BELOW ZERO ON FEBRUARY 15, THE
TEMPERATURE SOARED ALL THE WAY TO 54 DEGREES THE NEXT DAY AS SNOW
CHANGED TO RAIN AND WARMER AIR MOVED IN. WARM WEATHER WAS THE RULE
THROUGH THE MIDDLE OF MARCH. ANOTHER SNOWSTORM BROUGHT 4 INCHES OF
SNOW ON MARCH 21 AND SIGNALED ANOTHER CHANGE IN THE WEATHER PATTERN
TOWARD COOLER TEMPERATURES. BY THE BEGINNING OF APRIL A VERY COLD
LATE SEASON AIR MASS MOVED INTO THE AREA. MORE SNOW FELL ON APRIL 3
AND 4 AND THE TEMPERATURE DROPPED INTO THE TEENS. FOR THE NEXT FEW
MONTHS THE WEATHER PATTERN FEATURED CONTINENTAL AIR SPILLING OUT OF
CANADA. THIS MEANT DRY AND COOL CONDITIONS FOR MOST OF APRIL AND
INTO THE BEGINNING OF MAY. THE LAST FREEZE OF THE SEASON WAS ON
APRIL 27 WHICH WAS JUST A FEW DAYS LATER THAN NORMAL.

AFTER A COOL, DAMP START TO MAY, THE DRY CONTINENTAL AIR BEGAN
ARRIVING AGAIN IN MID MAY. BY THE END OF MAY TEMPERATURES WERE MORE
LIKE WHAT WOULD BE SEEN IN SUMMER, AS THE TEMPERATURE REACHED 94
DEGREES ON MAY 28. DRY AND MAINLY WARM WEATHER CONTINUED THROUGH
JUNE AND INTO JULY. A FEW DAYS OF COOL, MOIST ONSHORE WINDS BROUGHT
A BREAK FROM THE HEAT IN MID JULY WHEN THE TEMPERATURE DID NOT RISE
ABOVE 65 DEGREES ON JULY 9 AND 10. BUT THE HEAT SOON RETURNED AND
GRADUALLY INTENSIFIED THROUGH THE MIDDLE OF AUGUST. THE HOTTEST
TEMPERATURE OF THE YEAR WAS ON AUGUST 11 WHEN IT REACHED 97 DEGREES.
ALTHOUGH THE HEAT SUBSIDED A BIT, THE WARM SUMMER-LIKE TEMPERATURES
CONTINUED THROUGH THE MIDDLE OF SEPTEMBER. PERSISTENT DRY WEATHER
LED TO THE DEVELOPMENT OF AN INTENSE DROUGHT THROUGH THE SUMMER AND
INTO THE FALL. ON SEPTEMBER 19, SLOW MOVING LOW PRESSURE BROUGHT
MORE THAN 2.5 INCHES OF RAINFALL, THE HEAVIEST PRECIPITATION
MANCHESTER HAD OBSERVED IN NEARLY A YEAR. BUT TRUE DROUGHT RELIEF
WOULD NOT COME UNTIL THE MIDDLE OF OCTOBER WHEN TROPICAL MOISTURE
SURGED NORTHWARD AHEAD OF A FRONT AND DROPPED ANOTHER 2 INCHES OF
RAIN ON OCTOBER 21. THE FIRST FREEZE OF THE SEASON OCCURRED ON
OCTOBER 27, ABOUT 2 WEEKS LATER THAN NORMAL. MORE RAIN ASSOCIATED
WITH A NOR`EASTER OFFSHORE ON OCTOBER 27 AND 28 HELPED MAKE OCTOBER
THE FIRST MONTH OF ABOVE NORMAL RAINFALL SINCE DECEMBER 2015. MORE
FALL-LIKE WEATHER WAS OBSERVED THROUGH NOVEMBER AS A SERIES OF COLD
FRONTS BROUGHT ALTERNATING PERIODS OF WARMER AND COOLER WEATHER WITH
OCCASIONAL RAINFALL. THE FIRST ACCUMULATING SNOWFALL OF THE SEASON
CAME ON NOVEMBER 20 AND SIGNALED A BROADER SHIFT TOWARD COOLER
WEATHER. MORE SNOW CAME ON DECEMBER 5 WITH A SERIES OF COLD FRONTS
BRINGING COLDER TEMPERATURES AND MORE SNOWFALL THROUGH MID DECEMBER.
A BRUTALLY COLD EARLY WINTER ARCTIC AIR MASS MOVED INTO THE AREA IN
MID DECEMBER. ON DECEMBER 16 THE TEMPERATURE DROPPED ALL THE WAY TO
ZERO DEGREES. WARMER TEMPERATURES RETURNED ON DECEMBER 21 AND HELPED
TO MELT THE EARLY SEASON SNOW PACK JUST IN TIME FOR CHRISTMAS. AN
INTENSE LOW PRESSURE SYSTEM BROUGHT HEAVY SNOW ON DECEMBER 29 WHEN
MANCHESTER RECORDED 8 INCHES OF SNOWFALL, MOST OF IT IN JUST A FEW
HOURS.

OVERALL MANCHESTER WAS MUCH WARMER (+2.9 DEGREES) AND MUCH DRIER
(-16.91 INCHES) THAN NORMAL IN 2016. THE FOLLOWING TABLE SHOWS THE
MONTH BY MONTH BREAKDOWN OF AVERAGE TEMPERATURE, PRECIPITATION, AND
SNOWFALL INCLUDING DEPARTURES FROM NORMAL WHEN AVAILABLE.

SUMMARY OF TEMPERATURE AND PRECIPITATION BY MONTH FOR 2016...
MONTH      AVERAGE TEMP  PRECIPITATION   SNOWFALL
JANUARY    29.4  (+5.0)   1.15  (-1.87)   5.0
FEBRUARY   31.1  (+3.1)   2.74  (-0.04)  14.3
MARCH      41.4  (+5.4)   2.24  (-2.09)   4.2
APRIL      46.8  (-0.5)   1.73  (-2.13)   3.9
MAY        59.5  (+1.4)   1.18  (-2.87)   0.0
JUNE       68.8  (+1.8)   1.30  (-2.49)   0.0
JULY       75.0  (+2.5)   1.62  (-2.18)   0.0
AUGUST     75.3  (+4.3)   2.29  (-1.34)   0.0
SEPTEMBER  66.6  (+4.0)   3.66  (-0.15)   0.0
OCTOBER    52.6  (+1.8)   4.35  (+0.19)   0.0
NOVEMBER   43.1  (+1.6)   2.39  (-1.68)   0.5
DECEMBER   30.1  (-0.3)   3.02  (-0.26)  23.0
ANNUAL     51.6  (+2.4)  27.67 (-16.91)  50.9

THERE WERE 3 DAYS IN 2016 THAT RECORDED AT LEAST 1.00 INCH OF
PRECIPITATION, ABOUT 6.5 FEWER DAYS THAN NORMAL. THERE WERE ALSO 2
DAYS THAT RECORDED AT LEAST 6 INCHES OF SNOWFALL. THE FOLLOWING
TABLES LIST THE DATES WHICH RECORDED 1.00 INCH OF PRECIPITATION OR 6
INCHES OR MORE OF SNOWFALL.

DAYS WITH AT LEAST 1.00 INCH OF PRECIPITATION
DAY           PRECIPITATION
AUGUST 21     1.11
SEPTEMBER 19  2.69
OCTOBER 21    2.25

DAYS WITH AT LEAST 6 INCHES OF SNOWFALL
DAY           SNOWFALL
FEBRUARY 5    7.7
DECEMBER 29   8.0

HISTORICAL RECORDS AT MANCHESTER ARE NOT PROVIDED DUE TO NUMEROUS
MISSING YEARS WITHIN THE HISTORICAL RECORD. ALTHOUGH THE EARLIEST
DATA AVAILABLE IS IN 1948, MOST YEARS BETWEEN 1955 AND 1998 ARE
MISSING. THERE ARE NOT YET ENOUGH CONSECUTIVE YEARS OF DATA TO
REPORT MEANINGFUL INFORMATION ON EXTREME TEMPERATURE, PRECIPITATION,
OR SNOWFALL, AND NORMAL VALUES REPORTED ARE CONSIDERED BEST
ESTIMATES.

$$

KIMBLE



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