Climatological Report (Seasonal)
Issued by NWS Portland, ME

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CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
1235 PM EDT MON JUN 3 2019

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE SPRING SEASON, FROM
3/1/2019 TO 5/31/2019...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2019 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2019 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2019 /FOR SNOWFALL/

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              94   05/31/1987
 LOW              -21   03/04/1950
HIGHEST            84   05/26        85      -1       90  05/02
LOWEST              2   03/07         6      -4        8  03/18
AVG. MAXIMUM     51.7              53.0    -1.3     53.0
AVG. MINIMUM     34.7              34.6     0.1     35.8
MEAN             43.2              43.8    -0.6     44.4
DAYS MAX >= 90      0               0.4    -0.4        1
DAYS MAX <= 32      4               4.3    -0.3        2
DAYS MIN <= 32     38              36.8     1.2       42
DAYS MIN <= 0       0               0.4    -0.4        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.55   1983
 MINIMUM         4.23   1965
TOTALS          11.98             12.57   -0.59     9.82
DAILY AVG.       0.13              0.14   -0.01     0.11
DAYS >= .01        43              35.5     7.5       33
DAYS >= .10        27              21.6     5.4       17
DAYS >= .50        10               8.5     1.5        5
DAYS >= 1.00        1               2.8    -1.8        3
GREATEST
 24 HR. TOTAL    1.22   04/27

SNOWFALL (INCHES)
RECORDS
 TOTAL           61.5   1906
TOTALS           14.9              15.5    -0.6     33.7
SINCE 7/1        66.0              61.9     4.1     91.9
SNOWDEPTH AVG.      1
DAYS >= TRACE      14               6.1     7.9       23
DAYS >= 1.0         4               3.7     0.3        6
GREATEST
 SNOW DEPTH         8   03/06
                        03/04
                        03/05
 24 HR TOTAL      6.2   03/03 TO 03/04

DEGREE_DAYS
HEATING TOTAL    1986              1960      26     1894
 SINCE 7/1       6978              7001     -23     6598
COOLING TOTAL       3                 7      -4       15
 SINCE 1/1          3                 7      -4       15
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST GUST SPEED/DIRECTION    47/300    DATE  04/16

SKY COVER
AVERAGE SKY COVER           0.60

AVERAGE RH (PERCENT)     67

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

&&

WINTER-LIKE CONDITIONS CONTINUED INTO THE FIRST FEW WEEKS OF
METEOROLOGICAL SPRING. A SNOWSTORM ON MARCH 3 AND 4 BROUGHT MORE
THAN 6 INCHES OF SNOW. COLDER AIR POURED IN BEHIND THIS STORM, THE
LAST STRONG ARCTIC AIR MASS OF THE SEASON. PORTLAND SPENT THE NEXT 3
DAYS BELOW FREEZING. GRADUALLY, THOUGH, THE WORST OF THE COLD GAVE
WAY TO MORE MILD CONDITIONS. ALTHOUGH MORE LIGHT SNOW FELL IN THE
COMING WEEK IT WAS NOT ENOUGH TO STOP THE INEVITABLE SPRING MELT
OFF. THE WARM WEATHER AND A FEW RAINY DAYS MELTED THE SNOW BY THE
MORNING OF APRIL 1. CONDITIONS TURNED A BIT COOLER IN APRIL WITH
FREQUENT RAIN AND SNOW SHOWERS. THE LAST SIGNIFICANT SNOWFALL OF THE
SEASON WAS ON APRIL 8 AND 9 WHEN 3.8 INCHES WAS MEASURED. IT DIDN`T
LAST LONG, THOUGH, AS WARMER WEATHER SOON FOLLOWED. THE TEMPERATURE
WARMED TO 73 DEGREES ON APRIL 13, THE FIRST 70 DEGREE READING OF THE
YEAR. THEN THE WEATHER TURNED COOL AND SHOWERY AGAIN WITH RAIN
OBSERVED ON 9 OUT OF 10 DAYS FROM APRIL 18TH THROUGH 27TH, INCLUDING
MORE THAN 2 INCHES ON THE 26TH AND 27TH. A PATTERN WAS BEGINNING TO
EMERGE WHICH FEATURED A BATTLE BETWEEN BUILDING WARMTH OVER THE
SOUTHEAST US AND LINGERING COLD OVER CANADA AND THE GULF OF MAINE.
WITH THE JET STREAM FREQUENTLY NEARBY, QUICK-MOVING STORM SYSTEMS
WOULD BRING FREQUENT SHOWERS. RAIN FELL ON 6 OF THE FIRST 7 DAYS OF
MAY. COOLER AIR FROM CANADA MOVED INTO THE AREA DURING THE MIDDLE OF
MAY. THE COOLEST DAY WAS MAY 14 WHEN THE TEMPERATURE ONLY MADE IT TO
45 DEGREES FOR A HIGH. SOME WARMER WEATHER FINALLY BEGAN MOVING INTO
THE AREA FROM THE SOUTHWEST DURING THE LAST HALF OF MAY. THE WARMEST
WAS ON MAY 26 WHEN IT WAS 84 DEGREES. BUT SOON A COLD FRONT BROUGHT
A RETURN TO COOL CONDITIONS. OVERALL THE SPRING WAS REMEMBERED FOR
BEING CLOUDY AND COOL WITH FREQUENT PRECIPITATION. MEASURABLE
PRECIPITATION WAS RECORDED ON 43 DAYS THIS SPRING.

THE AVERAGE TEMPERATURE THIS SPRING WAS 43.2 DEGREES WHICH WAS 0.6
DEGREES BELOW NORMAL. THE WARMEST TEMPERATURE WAS 84 DEGREES ON MAY
26. THE COLDEST WAS 2 DEGREES ON MARCH 7. THE COOLEST SPRING ON
RECORD WAS IN 1956 WHEN THE AVERAGE TEMPERATURE WAS ONLY 37.9
DEGREES. THE WARMEST WAS 48.9 DEGREES IN 2010.

A TOTAL OF 11.98 INCHES OF PRECIPITATION FELL WHICH WAS 0.59 INCHES
BELOW NORMAL. THIS MARKED THE 6TH OF THE LAST 7 YEARS WITH BELOW
NORMAL SPRING PRECIPITATION. THE HEAVIEST PRECIPITATION CAME ON
APRIL 26 AND 27 WHEN 2.07 INCHES OF RAIN FELL. THE DRIEST SPRING ON
RECORD WAS IN 1965 WHEN ONLY 4.23 INCHES OF PRECIPITATION WAS
RECORDED. THE WETTEST WAS IN 1983 WITH 22.55 INCHES.

THERE WAS 14.9 INCHES OF SNOWFALL WHICH WAS 0.6 INCHES BELOW NORMAL.
THE HEAVIEST SNOW FELL ON MARCH 3 AND 4 WHEN 6.2 INCHES WAS
MEASURED. SNOWFALL IN SPRING CAN BE QUITE VARIABLE, WITH MOST OF IT
FALLING IN MARCH. THE SNOWIEST SPRING ON RECORD WAS IN 1906 WHEN
61.5 INCHES FELL. THERE HAVE BEEN TWO YEARS IN WHICH ONLY A TRACE OF
SNOW WAS OBSERVED IN SPRING, 1921 AND 1910.

SNOWFALL FOR THE 2018-19 SEASON TOTALED 66.0 INCHES WHICH WAS 4.1
INCHES ABOVE NORMAL. THE LAST SEVERAL SEASONS HAVE BEEN SNOWY IN
PORTLAND WITH 6 OF THE LAST 7 YEARS REPORTING ABOVE NORMAL SNOW AS
WELL AS 9 OF THE LAST 12 YEARS. THE HEAVIEST SNOW THIS SEASON CAME
ON NOVEMBER 19 AND 20 WHEN 8.3 INCHES OF SNOW WAS RECORDED. THE
SNOWIEST SEASON ON RECORD WAS IN 1970-71 WHEN 141.5 INCHES OF SNOW
FELL. THE LEAST SNOWY SEASON WAS IN 1979-80 WHEN ONLY 27.5 INCHES
FELL.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SPRING 2019...
DATE    RECORD                               PREVIOUS
MAR 15  39   - WARMEST LOW TEMPERATURE       38 IN 2016
APR 20  52   - WARMEST LOW TEMPERATURE       49 IN 1987
APR 20  6    - SMALLEST TEMPERATURE RANGE    7 IN 1978
MAY 2   3    - SMALLEST TEMPERATURE RANGE    3 IN 2016 (TIED)
MAY 14  45   - COOLEST HIGH TEMPERATURE      47 IN 1948
MAY 14  42   - COOLEST AVERAGE TEMPERATURE   44 IN 1948, 1947

$$

KIMBLE



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