Climatological Report (Monthly)
Issued by NWS Caribou, ME

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CXUS51 KCAR 031220 CCA
CLMBGR

CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU, ME
648 PM EDT MON MAY 1 2017

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

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

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1925 TO 2017

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              92   04/27/1990
 LOW                4   04/01/1928
HIGHEST            77   04/29        MM      MM       74  04/21
                        04/11
LOWEST             25   04/04        MM      MM       13  04/06
                        04/03
AVG. MAXIMUM     55.2              52.8     2.4     52.2
AVG. MINIMUM     36.2              32.2     4.0     28.3
MEAN             45.7              42.5     3.2     40.2
DAYS MAX >= 90      0               0.0     0.0        0
DAYS MAX <= 32      0               0.4    -0.4        1
DAYS MIN <= 32      8              15.0    -7.0       22
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        11.04   1983
 MINIMUM         0.59   1999
TOTALS           3.98                      0.36
DAILY AVG.       0.13              0.12    0.01     0.09
DAYS >= .01        13              11.3     1.7        9
DAYS >= .10        10               7.0     3.0        4
DAYS >= .50         2               2.2    -0.2        2
DAYS >= 1.00        2               0.5     1.5        1
GREATEST
 24 HR. TOTAL    1.18   04/06 TO 04/06           04/07 TO 04/08
                                                          04/26 TO 04/26
                                                          04/26 TO 04/26

SNOWFALL (INCHES)
RECORDS
 TOTAL           24.4   2007
TOTALS            2.3               3.7    -1.4        T
SINCE 7/1        82.6              66.1    16.5     44.6
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         1               1.0     0.0        0
GREATEST
 SNOW DEPTH         2   04/05                         -1  04/07
 24 HR TOTAL      1.9   04/05 TO 04/05           04/26 TO 04/26
                                                          04/26 TO 04/26
                                                          04/26 TO 04/26

DEGREE_DAYS
HEATING TOTAL     570               675    -105      736
 SINCE 7/1       6912              7398    -486     6636
COOLING TOTAL       0                 0       0        0
 SINCE 1/1          0                 0       0        0
.......................................................

WIND (MPH)
AVERAGE WIND SPEED              8.1
HIGHEST WIND SPEED/DIRECTION    32/320    DATE  04/29
HIGHEST GUST SPEED/DIRECTION    40/340    DATE  04/29

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.80
NUMBER OF DAYS FAIR            2
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         18

AVERAGE RH (PERCENT)     72

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              0     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       3
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       3
LIGHT SNOW                5     SLEET                      0
FOG                      20     FOG W/VIS <= 1/4 MILE      2
HAZE                      0

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
---------------------------------------------------------------------
...NORTHERN AND EASTERN MAINE MONTHLY CLIMATE NARRATIVE...

APRIL 2017 FINISHED WITH ABOVE AVERAGE TEMPERATURES. PRECIPITATION
WAS ABOVE AVERAGE, EXCEPT ACROSS PORTIONS OF THE DOWNEAST REGION
WHERE IT WAS SLIGHTLY BELOW AVERAGE. SNOWFALL WAS ABOVE AVERAGE
ACROSS FAR NORTHERN MAINE, AND WAS NEAR AVERAGE ACROSS THE
DOWNEAST REGION.

TEMPERATURES RANGED FROM 1.5 TO 3.5 DEGREES ABOVE AVERAGE. IT
TIED WITH 1979 AS THE 8TH WARMEST APRIL AT CARIBOU, AND IT WAS
ALSO THE 8TH WARMEST APRIL ON RECORD AT BANGOR. APRIL 2017 ENDED
AS THE 7TH WARMEST ON RECORD AT HOULTON.

LIQUID PRECIPITATION (RAIN AND MELTED SNOW) RANGED FROM 100 TO
150 PERCENT OF NORMAL ACROSS NORTHERN AND EASTERN MAINE, WITH THE
EXCEPTION OF PARTS OF EASTERN HANCOCK AND WASHINGTON COUNTY WHERE
PRECIPITATION RANGED FROM 70 TO 100 PERCENT OF NORMAL. THE TOTAL
MONTHLY SNOWFALL OF 9.4 INCHES AT CARIBOU WAS 2.0 INCHES ABOVE
NORMAL, AND IT WAS THE SNOWIEST APRIL SINCE 2011. AT BANGOR, A
TOTAL OF 2.3 INCHES OF SNOW WAS OBSERVED, WHICH WAS 1.4 INCHES BELOW
NORMAL. THERE WERE 4 CONSECUTIVE DAYS WITH AN INCH OR MORE OF SNOW
AT CARIBOU FROM THE 19TH THROUGH THE 22ND, WHICH WAS THE MOST
CONSECUTIVE DAYS WITH AN INCH OR MORE OF SNOW ENTIRELY DURING THE
MONTH OF APRIL.

THE MONTH FEATURED ALTERNATING SPELLS OF ABOVE AND BELOW AVERAGE
TEMPERATURES, BUT OVERALL THE ABOVE AVERAGE TEMPERATURES DOMINATED
AND WERE MORE PERSISTENT THAN THE COOL SPELLS. THERE WERE A TOTAL
OF 14 NIGHTS AT CARIBOU WITH A LOW TEMPERATURE OF FREEZING OR
LOWER, WHICH WAS BELOW THE LONG TERM AVERAGE OF 20 NIGHTS. AT
BANGOR, THERE WERE 8 NIGHTS WITH A LOW OF FREEZING OR LOWER, WHICH
WAS BELOW THE LONG TERM AVERAGE OF 15 NIGHTS.

THE SNOW DEPTH AT THE START OF THE MONTH RANGED FROM 25 TO 35
INCHES ACROSS NORTHERN AREAS, BUT WAS 6 INCHES OF LESS IN MOST
AREAS ALONG THE DOWNEAST COAST. BY THE END OF THE MONTH, THE ONLY
SNOW THAT REMAINED WAS GENERALLY IN THE MORE PROTECTED LOCATIONS
IN THE HIGHER ELEVATIONS OF FAR NORTHERN MAINE WHERE THERE WERE
LOCALIZED AREAS WITH SEVERAL INCHES OF SNOW ON THE GROUND.

THE OFFICIAL OUTLOOK FOR MAY 2017 FROM THE CLIMATE PREDICTION
CENTER INDICATES THAT THERE ARE NO STRONG CLIMATE SIGNALS THAT
WOULD TILT THE ODDS TOWARD AN UNUSUALLY COLD OR WARM MAY. THERE IS
AN INCREASED LIKELIHOOD OF ABOVE AVERAGE PRECIPITATION.

THE AVERAGE HIGH AT CARIBOU CLIMBS FROM 55 DEGREES IN THE 1ST TO
67 DEGREES BY THE END OF THE MONTH. AT BANGOR, THE AVERAGE HIGHS
CLIMB FROM 60 DEGREES ON THE 1ST TO 70 DEGREES AT THE END OF THE
MONTH. THE AVERAGE LOWS AT CARIBOU RISE FROM 35F ON THE 1ST TO 45F
BY THE END OF THE MONTH. AT BANGOR, THE AVERAGE LOWS RISE FROM 38F
ON THE 1ST TO 47F BY THE END OF THE MONTH. THERE IS AN INCREASE
OF OVER AN HOUR OR AVAILABLE DAYLIGHT DURING THE MONTH OF MAY.

$$

CB/VJN


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