Climatological Report (Monthly)
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
112
CXUX51 KGYX 012354
CLMGYX

PWMCLMGYX 000
TTAA00 KGYX 011703


CLIMATE REPORT
NATIONAL WEATHER SERVICE GRAY ME
754 PM EDT MON MAY 1 2017

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

...THE GRAY ME CLIMATE SUMMARY FOR THE MONTH OF APRIL 2017...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1995 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE
                                          NORMAL
.............................................................
TEMPERATURE (F)
RECORD
 HIGH              91   04/28/2009
 LOW               15   04/04/2016
HIGHEST            85   04/16        79       6       74
LOWEST             29   04/02        26       3       15
                        04/01
AVG. MAXIMUM     56.0              53.6     2.4     52.8
AVG. MINIMUM     37.5              34.9     2.6     32.0
MEAN             46.8              44.3     2.5     42.4
DAYS MAX >= 90      0               0.1    -0.1        0
DAYS MAX <= 32      1               0.3     0.7        1
DAYS MIN <= 32      7               9.6    -2.6       13
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        10.62   2005
 MINIMUM         0.35   1999
TOTALS           5.00              4.38    0.62     2.81
DAILY AVG.       0.17              0.15    0.02     0.09
DAYS >= .01        14              11.1     2.9       10
DAYS >= .10         9               6.7     2.3        7
DAYS >= .50         4               2.9     1.1        2
DAYS >= 1.00        2               1.2     0.8        0
GREATEST
 24 HR. TOTAL    1.44   04/25 TO 04/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           27.2   2007
TOTALS           11.0               4.8     6.2      5.2
SINCE 7/1       123.9              83.8    40.1     51.8
SNOWDEPTH AVG.      4
DAYS >= TRACE       4               2.2     1.8        4
DAYS >= 1.0         1               1.0     0.0        1
GREATEST
 SNOW DEPTH        18   04/02                          2
 24 HR TOTAL     13.4   03/31 TO 04/01

DEGREE_DAYS
HEATING TOTAL     543               624     -81      671
 SINCE 7/1       6400              6775    -375     6083
COOLING TOTAL       2                 1       1        0
 SINCE 1/1          2                 1       1        0
..............................................................



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

&&

THE PERSISTENT COOL WEATHER WHICH LASTED THROUGH THE MONTH OF MARCH
CONTINUED INTO THE FIRST PART OF APRIL. A SNOWSTORM WAS RAGING AS
THE MONTH BEGAN, DROPPING 14 INCHES OF SNOW FROM THE EVENING OF
MARCH 31 INTO THE DAY ON APRIL 1. THIS REPLENISHED THE LATE WINTER
SNOW COVER UP TO A DEPTH OF 18 INCHES ON APRIL 2. ONLY IN APRIL 2001
HAS THE NWS OFFICE IN GRAY RECORDED A HIGHER SNOW DEPTH IN APRIL.
SEVERAL COOL DAYS FOLLOWED WITH FREQUENT RAINFALL, INCLUDING 1.3
INCHES OF RAIN ON APRIL 6. THEN THE WEATHER PATTERN BEGAN TO SHIFT
AND MUCH WARMER AIR MOVED INTO THE REGION. BY APRIL 11 THE
TEMPERATURE SOARED ALL THE WAY TO 79 DEGREES, THE FIRST TIME THE
TEMPERATURE HAD TOPPED 70 DEGREES YET THIS YEAR. ALTHOUGH A COLD
FRONT BROUGHT THE TEMPERATURE BACK DOWN TO NORMAL FOR THE NEXT FEW
DAYS, THE RAIN AND WARMTH WAS ENOUGH TO MELT THE LAST OF THE WINTER
SNOW COVER. THE WARMTH RETURNED AGAIN ON EASTER SUNDAY, APRIL 16,
WHEN THE TEMPERATURE SOARED ALL THE WAY TO 85 DEGREES. THIS WAS THE
EARLIEST 80 DEGREE READING SINCE MARCH 21, 2012. A COLD FRONT
BROUGHT TEMPERATURES BACK DOWN THE NEXT DAY, AND A COOL ONSHORE
BREEZE FROM THE FRIGID GULF OF MAINE KEPT TEMPERATURES BELOW NORMAL
FOR THE NEXT SEVERAL WEEK OR SO. THE LAST HALF OF THE MONTH WAS A
BATTLE BETWEEN BUILDING WARMTH IN THE INTERIOR AND THE COOLING
INFLUENCE OF THE GULF OF MAINE. WHEN THE WIND WAS FROM THE EAST, THE
TEMPERATURE WOULD STRUGGLE TO RISE INTO THE 50S. WHEN THE WIND WAS
FROM THE SOUTHWEST IT WOULD WARM INTO THE 60S AND 70S. BY APRIL 29
THE TEMPERATURE REACHED 80 DEGREES AGAIN.

THE AVERAGE TEMPERATURE FOR THE MONTH WAS 46.8 DEGREES WHICH WAS 2.5
DEGREES ABOVE NORMAL. THE WARMEST APRIL ON RECORD WAS IN 2010 WHEN
THE AVERAGE TEMPERATURE WAS 49.0 DEGREES. THE COLDEST WAS 2003 WHEN
IT WAS ONLY 41.1 DEGREES.

A TOTAL OF 5.00 INCHES OF PRECIPITATION FELL WHICH WAS 0.62 INCHES
ABOVE NORMAL AND THE WETTEST APRIL SINCE 2012. THE HEAVIEST
PRECIPITATION FELL ON THE 25TH AND 26TH WHEN NEARLY 1.5 INCHES OF
RAIN WAS RECORDED. THE WETTEST APRIL ON RECORD WAS 2005 WHEN 10.62
INCHES OF PRECIPITATION FELL. THE DRIEST WAS 1999 WITH ONLY 0.35
INCHES.

THERE WAS 11.0 INCHES OF SNOWFALL WHICH WAS 6.2 INCHES ABOVE NORMAL
AND THE SNOWIEST APRIL SINCE 2007. MOST OF THIS SNOW FELL ON APRIL 1
DURING THE LAST HALF OF A SIGNIFICANT SNOWSTORM. SNOWFALL IN APRIL
IS TYPICALLY INCONSISTENT. THE SNOWIEST APRIL WAS 2007 WHEN 27.2
INCHES FELL. MEASURABLE SNOW HAS BEEN RECORDED IN APRIL 82 PERCENT
OF THE TIME, WHILE AN ADDITIONAL 14 PERCENT OF APRILS HAVE RECORDED
A TRACE OF SNOW, MOST RECENTLY IN 2009. THE ONLY YEAR SO FAR TO
RECORD NO SNOW IN APRIL WAS 1999.

THE SNOWSTORM ON MARCH 31 INTO APRIL 1 WAS THE 2ND LARGEST APRIL
SNOWSTORM IN THE SHORT 22-YEAR HISTORY OF OBSERVATIONS AT THE NWS
OFFICE IN GRAY. THE FOLLOWING TABLE LISTS THE LARGEST APRIL
SNOWSTORMS AT GRAY.

LARGEST SNOWSTORMS IN APRIL (SINCE 1995)...
RANK  SNOW  DATES
1     15.2  4/4-6/2007
2     14.0  3/31-4/1/2017 <===
3     11.3  4/9-10/1996
4     10.4  3/31-4/1/2011
5     9.4   4/12-13/2007

$$

KIMBLE



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