Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
504 PM EDT MON APR 9 2018

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF MARCH 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2018 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2018 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2018 /FOR SNOWFALL/

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              88   03/31/1998
 LOW              -21   03/04/1950
HIGHEST            58   03/30        62      -4       54  03/08
                                                          03/02
LOWEST              8   03/18         6       2        1  03/12
AVG. MAXIMUM     40.8              42.1    -1.3     37.0
AVG. MINIMUM     27.1              24.9     2.2     20.6
MEAN             34.0              33.5     0.5     28.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      2               3.7    -1.7       10
DAYS MIN <= 32     26              23.7     2.3       27
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.24   2010
 MINIMUM         0.09   1915
TOTALS           3.20              4.24   -1.04     3.50
DAILY AVG.       0.10              0.14   -0.04     0.11
DAYS >= .01        12              11.7     0.3       12
DAYS >= .10         6               7.5    -1.5        6
DAYS >= .50         2               2.9    -0.9        2
DAYS >= 1.00        1               0.9     0.1        1
GREATEST
 24 HR. TOTAL    1.03   03/13 TO 03/13

SNOWFALL (INCHES)
RECORDS
 TOTAL           49.0   1993
TOTALS           33.0              12.7    20.3     21.2
SINCE 7/1        91.2              59.1    32.1     87.4
SNOWDEPTH AVG.      6
DAYS >= TRACE      15               5.1     9.9
DAYS >= 1.0         6               3.1     2.9
GREATEST
 SNOW DEPTH        16   03/14
 24 HR TOTAL     14.5   03/07 TO 03/08

DEGREE_DAYS
HEATING TOTAL     956               976     -20     1114
 SINCE 7/1       5660              6018    -358     5592
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              10.7
HIGHEST WIND SPEED/DIRECTION    36/320    DATE  03/17
HIGHEST GUST SPEED/DIRECTION    50/320    DATE  03/17

SKY COVER
AVERAGE SKY COVER           0.60

AVERAGE RH (PERCENT)     66

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

&&

AFTER SOME WARM WEATHER IN THE LAST HALF OF FEBRUARY, PORTLAND SAW
ITS WINTER SNOW COVER MELT AWAY BY THE BEGINNING OF MARCH. THIS MAY
HAVE LED RESIDENTS TO EXPECT AN EARLY SPRING, BUT THAT IS NOT WHAT
WAS IN STORE. LIGHT SNOW RETURNED ON MARCH 4 AND 5, JUST AN
APPETIZER FOR WHAT WAS IN STORE THE NEXT FEW WEEKS. A NOR`EASTER
BROUGHT HEAVY SNOWFALL ON THE 7TH AND 8TH WHEN MORE THAN 15 INCHES
OF SNOW WAS MEASURED. SOME COLDER TEMPERATURES MOVED IN BEHIND THE
STORM WITH A REPLENISHED WINTER SNOW PACK RETURNING AFTER THE
EARLIER HIATUS. ANOTHER POWERFUL NOR`EASTER BROUGHT ANOTHER 14
INCHES OF SNOW ON THE 13TH AND 14TH, THIS TIME ACCOMPANIED BY STRONG
WINDS AS WELL. EVEN COLDER WEATHER MOVED IN BEHIND THIS STORM,
BRINGING WINTER-LIKE COLD IN THE MIDDLE OF MARCH. THE WORST OF THE
COLD BEGAN TO ABATE JUST AS ASTRONOMICAL SPRING BEGAN, WITH THE REST
OF THE MONTH SEEING GRADUALLY WARMING TEMPERATURES AND A SLOW MELT
OFF OF THE SECOND WINTER SNOW PACK. THE LAST 3 DAYS OF MARCH SAW
TEMPERATURES IN THE 50S, INCLUDING 58 DEGREES ON MARCH 30, SPRING-
LIKE WARMTH WHICH HAD NOT BEEN SEEN SINCE FEBRUARY.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 34.0 DEGREES WHICH WAS 0.5
DEGREES ABOVE NORMAL. ALTHOUGH DAYTIME HIGHS WERE COLDER THAN
NORMAL, NIGHTTIME LOWS WERE WARM ENOUGH TO BRING THE MONTHLY AVERAGE
ABOVE NORMAL. THE WARMEST MARCH ON RECORD WAS IN 2012 WHEN THE
AVERAGE TEMPERATURE WAS 41.1 DEGREES. THE COLDEST WAS IN 1956 WHEN
IT WAS 25.6 DEGREES.

A TOTAL OF 3.20 INCHES OF PRECIPITATION FELL WHICH WAS 1.04 INCHES
BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL DURING THE TWO MAJOR
SNOWSTORMS THAT OCCURRED, EACH DROPPING MORE THAN AN INCH OF LIQUID
EQUIVALENT PRECIPITATION ON THE 7TH AND 8TH AND AGAIN ON THE 13TH
AND 14TH. THE DRIEST MARCH ON RECORD WAS IN 1915 WHEN ONLY 0.09
INCHES WAS RECORDED. THE WETTEST WAS IN 2010 WHEN 11.24 INCHES FELL.

THERE WAS 33.0 INCHES OF SNOWFALL WHICH WAS 20.3 INCHES ABOVE NORMAL
AND THE 7TH SNOWIEST ON RECORD. THERE WERE TWO MAJOR SNOWSTORMS
WHICH EACH BROUGHT MORE THAN A FOOT OF SNOWFALL ON THE 7TH AND 8TH
AND AGAIN ON THE 13TH AND 14TH. THE SNOWIEST MARCH ON RECORD WAS IN
1993 WHEN 49.0 INCHES OF SNOW FELL. THE LEAST SNOWY WAS IN 1946 WHEN
NO SNOW WAS OBSERVED. THERE HAVE BEEN 3 OTHER YEARS WHEN ONLY A
TRACE OF SNOW WAS OBSERVED IN MARCH, MOST RECENTLY IN 1979. THE
FOLLOWING TABLE LISTS THE SNOWIEST MARCHES ON RECORD AT PORTLAND.

MOST SNOWFALL IN MARCH (SINCE 1882)...
RANK  SNOW  YEAR
1     49.0  1993
2     46.6  1956
3     41.0  1906
4     40.5  2001
5     38.3  1899
6     36.3  1916
7     33.0  2018 <===
8     32.5  2005
9     30.9  1939
10    29.1  1896

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN MARCH 2018...
DATE  RECORD                                PREVIOUS
7     2   - SMALLEST TEMPERATURE RANGE      2 IN 1973 /TIED/

$$

KIMBLE


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