Climatological Report (Seasonal)
Issued by NWS Portland, ME

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42
000
CXUS51 KGYX 101138
CLSPWM

PWMCLMPWM 000
TTAA00 KGYX 090914


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
738 AM EDT WED JUN 10 2015

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

...THE PORTLAND ME CLIMATE SUMMARY FOR THE SPRING SEASON, FROM
3/1/2015 TO 5/31/2015...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1941 TO 2015 /FOR TEMPERATURES/
CLIMATE RECORD PERIOD 1871 TO 2015 /FOR PRECIPITATION/
CLIMATE RECORD PERIOD 1882 TO 2015 /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            91   05/26        85       6       81  05/12
LOWEST             -2   03/01         6      -8       -2  03/04
AVG. MAXIMUM     55.2              53.0     2.2     50.9
AVG. MINIMUM     34.3              34.6    -0.3     32.4
MEAN             44.8              43.8     1.0     41.7
DAYS MAX >= 90      1               0.4     0.6        0
DAYS MAX <= 32      5               4.3     0.7       10
DAYS MIN <= 32     40              36.8     3.2       41
DAYS MIN <= 0       1               0.4     0.6        1

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        22.55   1983
 MINIMUM         4.23   1965
TOTALS           9.13             12.57   -3.44    10.90
DAILY AVG.       0.10              0.14   -0.04     0.12
DAYS >= .01        30              35.5    -5.5       39
DAYS >= .10        14              21.6    -7.6       25
DAYS >= .50         5               8.5    -3.5        6
DAYS >= 1.00        2               2.8    -0.8        2
GREATEST
 24 HR. TOTAL    3.69   04/20 TO 04/21

SNOWFALL (INCHES)
RECORDS
 TOTAL           61.5   1906
TOTALS            5.3              15.5   -10.2      4.9
SINCE 7/1        94.5              61.9    32.6     83.7
SNOWDEPTH AVG.      5
DAYS >= TRACE      14               6.1     7.9       12
DAYS >= 1.0         3               3.7    -0.7        2
GREATEST
 SNOW DEPTH        22   03/04
                        03/02
 24 HR TOTAL      2.9   04/08 TO 04/09

DEGREE_DAYS
HEATING TOTAL    1878              1960     -82     2122
 SINCE 7/1       6932              7001     -69     7361
COOLING TOTAL      40                 7      33        0
 SINCE 1/1         40                 7      33        0
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              8.8
HIGHEST WIND SPEED/DIRECTION    39/320    DATE  03/17
HIGHEST GUST SPEED/DIRECTION    53/300    DATE  03/17

SKY COVER
AVERAGE SKY COVER           0.50

AVERAGE RH (PERCENT)     60

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     HEAVY RAIN                 3
RAIN                     12     LIGHT RAIN                30
FREEZING RAIN             0     LT FREEZING RAIN           0
HEAVY SNOW                0     SNOW                       4
LIGHT SNOW               13     FOG                       35
FOG W/VIS <= 1/4 MILE     5     HAZE                      10

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

&&

AFTER THE BRUTAL LATE WINTER OF SNOW AND EXTREME COLD, PORTLAND
EVENTUALLY EMERGED INTO A WARMER SPRING. THE WINTER COLD CONTINUED
THROUGH MARCH, BUT THE PERSISTENT HEAVY SNOWS CAME TO AN END. IN
SPITE OF THE COLD, THE ACCUMULATED WINTER SNOW PACK GRADUALLY
DIMINISHED FROM LACK OF NEW SNOWFALL. ONE FINAL SNOWSTORM BROUGHT
2.9 INCHES ON APRIL 8 AND 9, THE MOST OF THE WHOLE SPRING SEASON. IT
WOULD NOT LAST LONG. SPRING TEMPERATURES FINALLY ARRIVED ON APRIL 11
WHEN THE TEMPERATURE SURPASSED 50 DEGREES FOR ONLY THE THIRD TIME
ALL YEAR. FIVE OF THE NEXT SIX DAYS SOARED INTO THE 60S AND THE LAST
OF THE WINTER SNOW MELTED ON APRIL 12. THE HEAVIEST RAIN OF THE
SEASON FELL ON APRIL 20 AND 21 WHEN 3.69 INCHES WAS MEASURED, MORE
THAN ONE THIRD OF THE TOTAL SEASONAL RAINFALL. ASIDE FROM THAT
STORM, THERE WAS A LACK OF HEAVY RAINFALL THIS SPRING, MARKING ONE
OF THE DRIEST SPRINGS IN THE LAST TWO DECADES. AS THE CALENDAR
TURNED INTO MAY THE SPRING WARMTH ACCELERATED, CULMINATING IN THE
WARMEST MAY ON RECORD. THE FIRST 90 DEGREE READING OF THE YEAR
OCCURRED ON MAY 26. PORTLAND DID NOT REACH 90 DEGREES AT ALL IN 2014.

THE AVERAGE TEMPERATURE FOR THE SPRING WAS 44.8 WHICH WAS 1.0
DEGREES ABOVE NORMAL. THIS INCLUDED THE WARMEST MAY ON RECORD. THE
HOTTEST TEMPERATURE WAS ON MAY 26 WHEN THE TEMPERATURE REACHED 91
DEGREES. THE COLDEST WAS ON MARCH 1 WHEN THE TEMPERATURE FELL TO 2
DEGREES BELOW ZERO. THE WARMEST SPRING ON RECORD WAS 2010 WHEN THE
AVERAGE TEMPERATURE WAS 48.9 DEGREES. THE COLDEST WAS 1956 AT ONLY
37.9 DEGREES.

PORTLAND CRACKED THE TOP TEN LIST ON NUMBER OF DAYS REACHING OR
EXCEEDING 60, 70, 80, AND 90 DEGREES THIS SPRING. ONE DAY REACHED 90
DEGREES WHICH TIES 14 OTHER YEARS AS THE THIRD MOST ON RECORD. THE
MOST WAS TWO DAYS WHICH OCCURRED IN 2009 AND 2001. THE FOLLOWING
TABLES LISTS THE TOP TEN YEARS WITH THE MOST NUMBER OF DAYS TO
MEET OR EXCEED 60, 70, AND 80 DEGREES IN SPRING RESPECTIVELY.

NUMBER OF DAYS IN SPRING REACHING 60, 70, OR 80 DEGREES (SINCE 1941).
   DAYS >= 60          |  DAYS >= 70          DAYS >= 80
RANK  DAYS  YEAR       |  DAYS  YEAR       |  DAYS  YEAR
1      47   2010       |  22    1941       |  9     1991
2      41   2012       |  20    1998       |  8     2015 <===
3      41   1991       |  19    2010       |  7     1959
4      39   1989       |  18    1991       |  7     1957
5      37   2015 <===  |  17    2015 <===  |  6     1977
6      36   1999       |  17    2012       |  6     1955
7      36   1986       |  17    1977       |  5     2010
8      36   1955       |  16    1959       |  5     2007
9      36   1941       |  16    1957       |  5     1998
10     35   1998*      |  15    1964*      |  5     1987

* ASTERISK INDICATES THE MOST RECENT OF SEVERAL YEARS

THE LAST FREEZE THIS SPRING OCCURRED ON APRIL 25 WHEN THE
TEMPERATURE HIT 32 DEGREES. THE NORMAL LAST FREEZE OCCURS AROUND MAY
3.

A TOTAL OF 9.13 INCHES OF PRECIPITATION FELL THIS SPRING WHICH WAS
3.44 INCHES BELOW NORMAL. THE HEAVIEST PRECIPITATION FELL ON APRIL
20 AND 21 WHEN 3.69 INCHES WAS MEASURED, MORE THAN ONE THIRD OF THE
ENTIRE SPRING TOTAL. THIS WAS THE SECOND DRIEST SPRING IN THE LAST
TWO DECADES, BUT DID NOT CRACK THE TOP TEN LIST OF DRIEST SPRINGS ON
RECORD. THE DRIEST SPRING ON RECORD WAS 1965 WHEN ONLY 4.23 INCHES
FELL. THE WETTEST WAS 1983 WHEN 22.55 INCHES WAS MEASURED.

THERE WERE NOT VERY MANY DAYS THIS SPRING TO RECORD SIGNIFICANT
RAINFALL. ONLY 14 DAYS RECORDED AT LEAST 0.10 INCHES OF RAIN. THIS
TIED FOR THE 7TH FEWEST ON RECORD. THE FOLLOWING TABLE LISTS THE
TOTAL NUMBER OF DAYS WITH 0.10 INCHES OF RAIN OR MORE IN SPRING.

NUMBER OF DAYS 0.10 OR MORE PRECIPITATION IN SPRING (SINCE 1871)
RANK  DAYS  YEAR
1      10   1915
2      12   2001
       12   1965
       12   1957
       12   1918
6      13   1941
7      14   2015 <===
       14   1985
       14   1959
       14   1885
       14   1880
       14   1872

ONLY 5.3 INCHES OF SNOW FELL THIS SPRING WHICH WAS 10.2 INCHES BELOW
NORMAL. THE MOST SNOW THIS SPRING WAS ON APRIL 8 AND 9 WHEN 2.9
INCHES FELL. THE LAST TIME PORTLAND SAW ABOVE NORMAL SPRING SNOWFALL
WAS 2007 WHEN 29.2 INCHES FELL. THE SNOWIEST SPRING ON RECORD WAS
1906 WHEN 61.5 INCHES WAS MEASURED. TWO YEARS ONLY HAD A TRACE OF
SNOW RECORDED IN SPRING, 1921 AND 1910.

THE FOLLOWING DAILY RECORDS WERE SET OR TIED IN SPRING 2015...
DATE    RECORD                              PREVIOUS
APR 3   52   - WARMEST AVERAGE TEMPERATURE  50 IN 2010 AND 2002
APR 20  2.20 - GREATEST PRECIPITATION       0.95 IN 1978
MAY 5   51   - WARMEST LOW TEMPERATURE      51 IN 2000 /TIED/
MAY 7   84   - WARMEST HIGH TEMPERATURE     81 IN 1957
MAY 7   65   - WARMEST AVERAGE TEMPERATURE  62 IN 2000
MAY 26  91   - WARMEST HIGH TEMPERATURE     91 IN 2010 /TIED/
MAY 26  75   - WARMEST AVERAGE TEMPERATURE  73 IN 2010 AND 1981
MAY 27  63   - WARMEST LOW TEMPERATURE      58 IN 1981
MAY 27  71   - WARMEST AVERAGE TEMPERATURE  70 IN 1981, 1959, AND 1944
MAY 28  64   - WARMEST LOW TEMPERATURE      58 IN 1944
MAY 28  72   - WARMEST AVERAGE TEMPERATURE  72 IN 1959 AND 1944

$$

KIMBLE


USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.