Climatological Report (Annual)
Issued by NWS Caribou, ME

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551
CXUS51 KCAR 111447
CLACAR

CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU, ME
913 AM EST FRI JAN 11 2019

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE YEAR OF 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2019

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              96   05/22/1977
                        06/29/1944
 LOW              -41   02/01/1955
HIGHEST            94   07/05        MM      MM       MM  MM
LOWEST            -19   01/03        MM      MM       MM  MM
AVG. MAXIMUM     50.7              49.4     1.3       MM
AVG. MINIMUM     30.9              30.3     0.6       MM
MEAN             40.8              39.9     0.9       MM
DAYS MAX >= 90      2               1.1     0.9       MM
DAYS MAX <= 32     86              89.5    -3.5       MM
DAYS MIN <= 32    187             177.7     9.3       MM
DAYS MIN <= 0      33              38.8    -5.8       MM

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        54.21   2005
 MINIMUM        10.11   2002
TOTALS          41.00             38.49    2.51       MM
DAILY AVG.       0.11              0.11    0.00       MM
DAYS >= .01       154             159.8    -5.8       MM
DAYS >= .10        77              87.4   -10.4       MM
DAYS >= .50        30              24.0     6.0       MM
DAYS >= 1.00        6               5.7     0.3       MM
GREATEST
 24 HR. TOTAL    2.10   MM                            MM

SNOWFALL (INCHES)
RECORDS
 TOTAL          181.1   1954
TOTALS          150.9             108.7    42.2       MM
SINCE 7/1        51.8              35.1    16.7       MM
SNOWDEPTH AVG.      9                MM      MM       MM
DAYS >= 1.0        33              27.5     5.5       MM
GREATEST
 SNOW DEPTH        36   02/11                         MM  MM
                        02/08
 24 HR TOTAL     13.0   MM                            MM

DEGREE_DAYS
HEATING TOTAL    9121              9354    -233       MM
 SINCE 7/1         MM              3594      MM       MM
COOLING TOTAL     410               180     230       MM
 SINCE 1/1        410               180     230       MM
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.3
HIGHEST WIND SPEED/DIRECTION    35/250    DATE  11/03
HIGHEST GUST SPEED/DIRECTION    52/250    DATE  11/03

SKY COVER
POSSIBLE SUNSHINE (PERCENT)    0
AVERAGE SKY COVER           0.50
NUMBER OF DAYS FAIR          135
NUMBER OF DAYS PC            119
NUMBER OF DAYS CLOUDY        111

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
 44
  7
  0
 30
  3
 42
HAZE                     49

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

&&

...YEARLY CLIMATE NARRATIVE FOR NORTHERN AND EASTERN MAINE...

TEMPERATURES AS A WHOLE DURING 2018 AVERAGED JUST SLIGHTLY ABOVE
AVERAGE (1981-2010 AVERAGES) RANGING FROM +0.3 DEGREES (F) AT BANGOR
AND HOULTON, +0.4F AT MILLINOCKET, AND +1.0 F AT CARIBOU.  THERE
WERE WELL ABOVE AVERAGE TEMPERATURES IN FEBRUARY AND AGAIN DURING
THE MID TO LATE SUMMER, BUT BELOW AVERAGE MUCH OF THE TIME FROM
OCTOBER THROUGH DECEMBER.

AS IS USUALLY THE CASE, PRECIPITATION WAS MORE VARIABLE, BUT OVERALL
DID NOT DEVIATE SIGNIFICANTLY FROM THE 30-YEAR AVERAGES.  AT
CARIBOU, A TOTAL OF 41 INCHES OF PRECIPITATION (RAIN AND MELTED
SNOW) WAS OBSERVED, WHICH WAS 2.51 INCHES ABOVE THE 30-YEAR AVERAGE.
 AT HOULTON, 35.92 INCHES WAS OBSERVED, WHICH WAS 4.06 INCHES BELOW
AVERAGE.  AT MILLINOCKET, A TOTAL OF 39.6 INCHES OF PRECIPITATION
WAS 3.08 INCHES BELOW AVERAGE.  BANGOR HAD THE GREATEST DEPARTURE
FROM AVERAGE WITH 46.99 INCHES, WHICH WAS 5.06 INCHES ABOVE AVERAGE.

AT CARIBOU, A TOTAL OF 150.9 INCHES OF SNOW WAS OBSERVED DURING THE
CALENDAR YEAR, WHICH WAS WELL ABOVE THE CALENDAR YEAR AVERAGE OF
110.7 INCHES AND RANKED AS THE 6TH SNOWIEST CALENDAR YEAR ON RECORD.

AT BANGOR, A TOTAL OF 109.5 INCHES WAS OBSERVED, WHICH WAS WELL
ABOVE THE AVERAGE OF 66.1 INCHES, AND TIED WITH 1959 AS THE 9TH
SNOWIEST CALENDAR YEAR.

MEMORABLE EVENTS DURING 2018:

JANUARY:   A BLIZZARD ON JANUARY 4-5 PRODUCED WIDESPREAD 14 TO 22
INCHES OF SNOW ACROSS THE REGION, ESPECIALLY JUST INLAND FROM THE
IMMEDIATE COAST WITH SIGNIFICANT BLOWING AND DRIFTING SNOW.

FEBRUARY:  TEMPERATURES WERE WELL ABOVE AVERAGE AND RANGED FROM 3.5
TO 5.5 DEGREES ABOVE AVERAGE AND IT WAS THE 7TH WARMEST FEBRUARY ON
RECORD AT CARIBOU AND THE 10TH WARMEST AT BANGOR.  THE
METEOROLOGICAL WINTER (DECEMBER 2017 THROUGH FEBRUARY 2018) WAS THE
3RD WETTEST AND 7TH SNOWIEST ON RECORD AT CARIBOU.

MARCH: ABOVE AVERAGE TEMPERATURES WERE OBSERVED EVERY DAY FROM THE
1ST THROUGH THE 15TH OF THE MONTH AT CARIBOU, HOULTON, AND
MILLINOCKET.  A MAJOR WINTER STORM ON THE 13-14 PRODUCED 18 TO 25
INCHES OF SNOW ACROSS THE DOWN EAST AND CENTRAL HIGHLANDS WITH LOCAL
AMOUNTS AS HIGH AS 30 INCHES.  THE 33 INCHES OF SNOW THAT FELL
DURING THE MONTH AT BANGOR MADE IT THE 6TH SNOWIEST MARCH ON RECORD.

APRIL: TEMPERATURES WERE BELOW TO AT TIMES WELL BELOW AVERAGE THE
FIRST HALF OF THE MONTH WITH A RECORD LOW OF 12 ON THE MORNING OF
THE 15TH AT CARIBOU.  THE WEATHER PATTERN CHANGED A MUCH MILDER ONE
THE 2ND HALF OF THE MONTH, BUT EVEN AT THE END OF THE MONTH THERE
WAS STILL A TRACE OF SNOW ON THE GROUND AT CARIBOU AND 12 TO 18
INCHES ACROSS THE HIGHER ELEVATIONS OF THE NORTH WOODS.

MAY: ALTHOUGH IT WAS A WARMER THAN AVERAGE MAY, A FAIRLY DRY WEATHER
PATTERN ALLOWED FOR SEVERAL FROSTS AND FREEZING MORNING DEEP INTO
THE MONTH.  TEMPERATURES ON THE 31ST TOPPED 90 DEGREES IN A FEW
SPOTS ACROSS CENTRAL AND NORTHERN AREAS.

JUNE:  LARGE TEMPERATURES FROM DAY TO NIGHT WERE COMMON WITH A LOT
OF VERY COOL NIGHTS. CARIBOU HAD 5 NIGHTS WITH LOWS IN THE 30S WITH
9 SUCH NIGHTS AT HOULTON.  ESTCOURT STATION HAD A HARD FREEZE ON THE
MORNING OF THE 22ND WITH A LOW OF 29 DEGREES.

JULY: WAS NOT ONLY THE WARMEST JULY ON RECORD, BUT THE ALL-TIME
WARMEST MONTH ON RECORD AT CARIBOU WITH AN AVERAGE TEMPERATURE OF
70.9 DEGREES, WHICH BROKE THE PREVIOUS MONTHLY RECORD OF 69.6
DEGREES IN 1970.   THERE WERE 22 DAYS WITH A HIGH OF 80 OR WARMER AT
CARIBOU, THE MOST EVER IN ANY MONTH.  THERE WERE 3 NIGHTS IN A ROW
FROM THE 23RD TO THE 25TH THAT TIED THE ALL-TIME RECORD WARM LOW OF
71F, LAST SET IN 1975. AUGUST: WAS ALSO THE WARMEST EVER OBSERVED AT
CARIBOU WITH AN AVERAGE TEMPERATURE OF 68.9 DEGREES, WHICH BROKE THE
PREVIOUS RECORD OF 68.2 DEGREES, SET IN 2015.

SEPTEMBER:  A RECORD HIGH OF 88 DEGREES AT CARIBOU ON THE 17TH
BROUGHT THE NUMBER OF 80 DEGREE DAYS TO 50 FOR 2018, WHICH WAS JUST
ONE SHY OF THE RECORD SET IN 1999.   THE FIRST COOL SNAP OF THE
SEASON ON THE 8TH THROUGH THE 10TH BROUGHT FROST AND FREEZING
TEMPERATURES TO PARTS OF THE REGION, WITH FROST OBSERVED IN AREAS
AROUND BANGOR ON THE MORNING OF THE 9TH.

OCTOBER: FEATURED BELOW AVERAGE TEMPERATURES WITH ONLY 6 DAYS
ALL MONTH WITH ABOVE AVERAGE TEMPERATURES AT CARIBOU AND BANGOR.  IT
WAS THE 3RD COOLEST OCTOBER ON RECORD AT HOULTON, AND THE COOLEST
SINCE 1974.  THE LOW OF 10 DEGREES AT HOULTON ON THE 27TH TIED FOR
THE ALL-TIME LOWEST TEMPERATURE OBSERVED DURING THE MONTH OF
OCTOBER.   SOME LOCATIONS IN NORTHERN PISCATAQUIS COUNTY INTO
SOUTHERN AROOSTOOK COUNTY OBSERVED 6 TO 10 INCHES OF SNOW ON THE
24TH.  ANOTHER STORM ON THE 27TH PRODUCED 1 TO 3 INCHES OF SNOW AND
SLEET FROM CARIBOU NORTH, AND FAIRLY UNUSUAL FOR OCTOBER SOME SPOTS
HAD OVER AN INCH OF SLEET.

NOVEMBER: WILL BE REMEMBERED FOR THE EARLY ONSET OF SUSTAINED WINTER
CONDITIONS BEGINNING AROUND THE 10TH OF THE MONTH.  IT WAS THE 2ND
COLDEST NOVEMBER ON RECORD AT BANGOR. THE EARLIEST ON RECORD FIRST
SUB-ZERO TEMPERATURES WERE OBSERVED AT HOULTON ON THE 18TH AND 19TH
AND HE EARLIEST FIRST ZERO AT CARIBOU ON THE 19TH FOLLOWED BY A
BRUTALLY COLD THANKSGIVING.  IT WAS THE 3RD SNOWIEST NOVEMBER AT
BANGOR AND THE 5TH SNOWIEST AT CARIBOU. THE SNOWMOBILE SEASON GOT
OFF TO AN EARLY START IN FAR NORTHERN AREAS.

DECEMBER: STARTED VERY COLD WITH WELL BELOW AVERAGE TEMPERATURES THE
FIRST 2 WEEKS OF THE MONTH.  THE MOST SIGNIFICANT EVENT WAS A
SOLSTICE RAIN STORM THAT PRODUCED 1.5 TO 3 INCHES OF RAIN WITH LOCAL
AMOUNTS OVER 3 INCHES DOWN EAST.  THE HEAVY RAIN CAUSED ALL THE
SNOWPACK TO MELT DOWN EAST WITH 50 PERCENT OR MORE IN NORTHERN
AREAS.  THERE WERE SOME LOCAL ICE JAMS ALONG THE AROOSTOOK AND SAINT
JOHN RIVERS LATE IN THE MONTH.

$$



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