Climatological Report (Monthly)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1109 AM EDT MON APR 3 2017

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE MONTH OF MARCH 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2017 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2017 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2017 /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            54   03/08        62      -8       72  03/31
                        03/02
LOWEST              1   03/12         6      -5       13  03/03
AVG. MAXIMUM     37.0              42.1    -5.1     46.2
AVG. MINIMUM     20.6              24.9    -4.3     29.4
MEAN             28.8              33.5    -4.7     37.8
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32     10               3.7     6.3        2
DAYS MIN <= 32     27              23.7     3.3       20
DAYS MIN <= 0       0               0.3    -0.3        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.24   2010
 MINIMUM         0.09   1915
TOTALS           3.50              4.24   -0.74     4.37
DAILY AVG.       0.11              0.14   -0.03     0.14
DAYS >= .01        12              11.7     0.3       13
DAYS >= .10         6               7.5    -1.5        8
DAYS >= .50         2               2.9    -0.9        4
DAYS >= 1.00        1               0.9     0.1        0
GREATEST
 24 HR. TOTAL    1.44   03/14 TO 03/15

SNOWFALL (INCHES)
RECORDS
 TOTAL           49.0   1993
TOTALS           21.2              12.7     8.5      7.1
SINCE 7/1        87.4              59.1    28.3     48.1
SNOWDEPTH AVG.      3
DAYS >= TRACE      11               5.1     5.9
DAYS >= 1.0         3               3.1    -0.1
GREATEST
 SNOW DEPTH        12   03/15
 24 HR TOTAL     16.4   03/14 TO 03/15

DEGREE_DAYS
HEATING TOTAL    1114               976     138      836
 SINCE 7/1       5592              6018    -426     5127
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              9.4
HIGHEST WIND SPEED/DIRECTION    40/030    DATE  03/14
HIGHEST GUST SPEED/DIRECTION    59/040    DATE  03/14

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     59

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 0
RAIN                      2     LIGHT RAIN                 9
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                1     SNOW                       2
LIGHT SNOW                9     FOG                       12
FOG W/VIS <= 1/4 MILE     4     HAZE                       3

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

&&

THE PERSISTENT LATE-FEBRUARY WARMTH CONTINUED INTO THE FIRST FEW
DAYS OF MARCH AND THE TEMPERATURE ROSE ALL THE WAY TO 54 DEGREES ON
MARCH 2. THIS COULD HAVE BEEN A SIGN OF THINGS TO COME, BUT IT WAS
NOT TO BE. IN FACT, THAT WAS THE WARMEST TEMPERATURE OF THE ENTIRE
MONTH AS COLD AIR MOVED IN THE FOLLOWING DAY. THE REST OF THE MONTH
FEATURED FREQUENT COLD AND OCCASIONALLY SNOWY WEATHER AS SEVERAL
ROUNDS OF ARCTIC AIR MOVED INTO NEW ENGLAND. FROM MARCH 10 THROUGH
16 PORTLAND ENDURED 7 STRAIGHT DAYS WHERE THE TEMPERATURE FAILED TO
RISE ABOVE FREEZING. THIS 7-DAY STRETCH TIED AS THE LONGEST STRETCH
OF CONSECUTIVE DAYS AT OR BELOW FREEZING ENTIRELY WITHIN THE MONTH
OF MARCH (ALSO HAPPENED MARCH 4 TO 10, 1996). ALTHOUGH THERE WERE A
FEW LIGHT SNOWFALLS DURING THIS COLD PERIOD IN MARCH, BY FAR THE
BIGGEST WAS ON MARCH 14 WHEN AN INTENSE NOR`EASTER BROUGHT BLIZZARD
CONDITIONS ALONG WITH MORE THAN 16 INCHES OF SNOWFALL. THE SNOW WAS
ACCOMPANIED BY WINDS GUSTING AS HIGH AS 59 MPH WHICH CAUSED
SIGNIFICANT BLOWING AND DRIFTING. ALTHOUGH THE WINTER SNOW DEPTH HAD
DIMINISHED DOWN TO JUST A TRACE BEFORE THIS BLIZZARD, THE AMOUNT OF
SNOW FROM THIS STORM WAS ENOUGH TO LAST ON THE GROUND RIGHT THROUGH
THE END OF THE MONTH. THE BITTER COLD GRADUALLY BEGAN TO FADE TOWARD
THE END OF THE MONTH WITH TEMPERATURES WARMING BACK UP CLOSER TO
NORMAL. BUT ONE MORE SNOWSTORM ARRIVED JUST AS THE MONTH WAS ENDING.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 28.8 DEGREES WHICH WAS 4.7
DEGREES BELOW NORMAL AND THE 8TH COLDEST MARCH ON RECORD. THE
WARMEST MARCH WAS IN 2012 WHEN THE AVERAGE TEMPERATURE WAS 41.1
DEGREES. THE COLDEST WAS IN 1956 AT ONLY 25.6 DEGREES. SINCE 2010, 5
OUT OF THE 8 MARCHES HAVE REACHED THE TOP 10 EITHER WARMEST OR
COLDEST. THE FOLLOWING TABLES LIST THE WARMEST AND COLDEST MARCHES
AT PORTLAND.

TOP TEN WARMEST AND COLDEST MARCHES AT PORTLAND (SINCE 1940)...
      WARMEST      |    COLDEST
RANK  TEMP  YEAR   |  TEMP  YEAR
1     41.1  2012   |  25.6  1956
2     39.9  2010   |  26.3  1950
3     39.5  1946   |  26.4  1967
4     38.6  1945   |  27.0  2014
5     37.8  2016   |  27.3  1960
6     37.7  1973   |  27.3  1941
7     37.6  2000   |  28.1  1984
8     37.0  1991   |  28.8  2017 <===
9     36.7  1998   |  28.9  1972
10    36.2  1958   |  29.1  1944

THERE WERE 10 DAYS IN MARCH THAT DID NOT SEE THE TEMPERATURE RISE
ABOVE FREEZING. THIS TIES THE RECORD FOR MOST SUBFREEZING DAYS IN
MARCH LAST SET IN 2014. THE FOLLOWING TABLE LISTS THE MARCHES WITH
THE MOST DAYS THAT DID NOT RISE ABOVE FREEZING.

MOST DAYS IN MARCH WITH MAX <= 32 (SINCE 1940)...
RANK  DAYS  YEAR
1      10   2017 <===
       10   2014
       10   1984
       10   1972
       10   1967
       10   1960
7       9   1956
        9   1948
        9   1944
10      8   1996 AND SEVERAL OTHERS

A TOTAL OF 3.50 INCHES OF PRECIPITATION FELL WHICH WAS 0.74 INCHES
BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL ON THE 14TH WHEN A
BLIZZARD BROUGHT 1.43 INCHES OF LIQUID EQUIVALENT SNOWFALL. THE
DRIEST MARCH WAS IN 1915 WHEN ONLY 0.09 INCHES FELL. THE WETTEST WAS
IN 2010 WITH 11.24 INCHES.

THERE WAS 21.2 INCHES OF SNOWFALL WHICH WAS 8.5 INCHES ABOVE NORMAL
AND THE SNOWIEST MARCH SINCE 2005. THE HEAVIEST SNOW FELL DURING THE
BLIZZARD ON THE 14TH WHICH BROUGHT MORE THAN 16 INCHES OF SNOWFALL.
THE REST OF THE MONTH ONLY SAW LIGHT SNOWFALL. THE SNOWIEST MARCH ON
RECORD WAS IN 1993 WHEN 49.0 INCHES OF SNOW FELL. IN MARCH 1946 NO
SNOW WAS OBSERVED. IN ADDITION THERE HAVE BEEN 3 MARCHES WHICH ONLY
OBSERVED A TRACE OF SNOWFALL, MOST RECENTLY IN 1979.

THE FOLLOWING RECORDS WERE SET OR TIED IN MARCH 2017...
DATE RECORD                                  PREVIOUS
1    40 - WARMEST LOW TEMPERATURE            37 IN 1999
11   17 - COLDEST HIGH TEMPERATURE           22 IN 1950
11   10 - COLDEST AVERAGE TEMPERATURE        12 IN 1960
14   16.3 - MOST SNOWFALL                    10.6 IN 1961
12   1  - COLDEST LOW TEMPERATURE            3 IN 1984 AND 1941
27   4  - SMALLEST TEMPERATURE RANGE         5 IN 1981 AND 3 OTHERS
28   4  - SMALLEST TEMPERATURE RANGE         4 IN 2005 /TIED/

$$

KIMBLE



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