Climatological Report (Seasonal)
Issued by NWS Caribou, ME

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CXUS51 KCAR 080944
CLSCAR

CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU, ME
513 AM EDT SUN SEP 8 2019

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2019 TO 8/31/2019...

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   06/29/1944
 LOW               30   06/07/1958
HIGHEST            91   07/05        MM      MM       94  07/05
LOWEST             38   06/07        MM      MM       37  06/15
                        06/01                             06/11
AVG. MAXIMUM     76.0              74.0     2.0     77.6
AVG. MINIMUM     53.5              52.7     0.8     54.8
MEAN             64.7              63.3     1.4     66.2
DAYS MAX >= 90      3               1.0     2.0        2
DAYS MAX <= 32      0               0.0     0.0        0
DAYS MIN <= 32      0               0.0     0.0        0
DAYS MIN <= 0       0               0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM           MM   MM
 MINIMUM           MM   MM
TOTALS           7.91             11.32   -3.41     9.22
DAILY AVG.       0.09              0.12   -0.03     0.10
DAYS >= .01        40              40.7    -0.7       30
DAYS >= .10        23              24.1    -1.1       15
DAYS >= .50         3               7.2    -4.2        8
DAYS >= 1.00        2               2.0     0.0        1
GREATEST
 24 HR. TOTAL    1.06   MM                       08/31 TO 08/31

SNOWFALL (INCHES)
RECORDS
 TOTAL              T   2011
TOTALS            0.0               0.0     0.0      0.0
SINCE 7/1         0.0               0.0     0.0      0.0
SNOWDEPTH AVG.      0                MM      MM        0
DAYS >= 1.0         0               0.0     0.0        0
GREATEST
 SNOW DEPTH         0   MM                             0  MM
 24 HR TOTAL      0.0   MM                       08/31 TO 08/31

DEGREE_DAYS
HEATING TOTAL     199               319    -120      233
 SINCE 7/1         60               154     -94       37
COOLING TOTAL     205               164      41      372
 SINCE 1/1        205               169      36      376
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.0
HIGHEST WIND SPEED/DIRECTION    30/010    DATE  07/08
HIGHEST GUST SPEED/DIRECTION    45/210    DATE  07/31

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.40
NUMBER OF DAYS FAIR           49
NUMBER OF DAYS PC             28
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     67

WEATHER CONDITIONS. NUMBER OF DAYS WITH
  0
 22
  0
  0
  0
  0
  6
HAZE                      1

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

&&

...SUMMER 2019 NORTHERN AND EASTERN MAINE CLIMATE NARRATIVE...

SUMMER (JUNE THROUGH AUGUST) 2019 FEATURED SLIGHTLY ABOVE AVERAGE
TEMPERATURES, BUT WAS NOT ANYWHERE NEAR AS WARM AS THE PREVIOUS
SUMMER. PRECIPITATION WAS MORE VARIABLE RANGING FROM 65 TO 100
PERCENT OF NORMAL ACROSS THE NORTH AND FROM 150 TO 200 PERCENT OF
NORMAL DOWN EAST.

JUNE WAS A COOL MONTH WITH NO 90 DEGREE TEMPERATURES OBSERVED AT ANY OF
THE LONG TERM CLIMATE SITES.  THE LAST SIGNIFICANT FROST/FREEZE OF THE
SEASON WAS OBSERVED ON THE 1ST OF THE MONTH ACROSS NORTHERN AND CENTRAL
PORTIONS OF THE AREA. RAINFALL WAS ABOVE AVERAGE IN MOST AREAS AND
RANGED FROM 110 TO 150 PERCENT OF AVERAGE.  ACROSS THE FAR NORTH,
PRECIPITATION WAS LESS ABUNDANT AND RANGED FROM 70 TO 100 PERCENT OF
AVERAGE.

JULY WAS A MUCH WARMER AND MORE HUMID MONTH AND RANKED AS THE 8TH
WARMEST ON RECORD IN CARIBOU AND THE 7TH WARMEST IN BANGOR. THERE WERE
3 DAYS WITH A HIGH OF 90 OR WARMER IN CARIBOU, THE MOST SINCE 1989.  IN
BANGOR, THERE WERE 5 DAY WITH A HIGH OF 90 OR WARMER, THE MOST SINCE
1997.  IT WAS ANOTHER WET MONTH DOWN EAST WITH PRECIPITATION RANGING FROM
130 TO 200 PERCENT OF AVERAGE.  MOST NORTHERN AREAS WERE RELATIVELY DRY WITH
50 TO 90 PERCENT OF AVERAGE RAINFALL.

AUGUST FEATURED TEMPERATURES THAT WERE SLIGHTLY ABOVE AVERAGE, BUT NO
EXTREME HEAT WITH NO 90 DEGREE TEMPERATURES OBSERVED AT ANY OF THE LONG
TERM CLIMATE SITES. PRECIPITATION WAS BELOW AVERAGE ACROSS THE NORTH AND
WELL ABOVE AVERAGE ACROSS THE SOUTH.  IN FACT, BANGOR HAD THE 2ND WETTEST
AUGUST ON RECORD WITH 7.54 INCHES OF RAIN OBSERVED.

FOR THE SUMMER SEASON, CARIBOU HAD 25 DAYS WITH A HIGH OF 80 OR WARMER,
WHICH WAS NEAR AVERAGE. THERE WERE 3 DAYS WITH HIGH OF 90 OR WARMER,
WHICH WAS 1 MORE THAN AVERAGE.  IN BANGOR, THERE WERE 37 DAYS WITH A HIGH
OF 80 OR WARMER, WHICH WAS 3 LESS THAN AVERAGE.  THERE WERE 5 DAYS WITH A
HIGH OF 90 OR WARMER, WHICH WAS AVERAGE NUMBER OF 90 DEGREE DAYS FOR THE
METEOROLOGICAL SUMMER.

RAINFALL AT CARIBOU FOR THE SUMMER WAS 7.91 INCHES, WHICH WAS 3.41
INCHES BELOW AVERAGE.  IT WAS THE DRIEST SUMMER SINCE 1995 WHEN ONLY
5.60 INCHES OF RAIN WAS OBSERVED, AND RANKED AS THE 5TH DRIEST
SUMMER SINCE WEATHER RECORDS BEGAN IN 1939. PRECIPITATION IN BANGOR
FOR THE SUMMER WAS 17.33 INCHES, WHICH WAS 7.13 INCHES ABOVE
AVERAGE, AND IT RANKED AS THE ALL-TIME WETTEST SUMMER ON RECORD.

IF WE USED THE CARIBOU JUNE THROUGH AUGUST TOTAL EVAPORATION OF
15.31 INCHES AS A PROXY TO COMPARE TO RAINFALL AT ANY OTHER LOCATION
ACROSS THE REGION, IT CAN EASILY BE SEEN WHY THE APPROXIMATE 55
PERCENT RAINFALL/EVAPORATION RATIO AT CARIBOU LEAD TO VERY DRY
GROUND, SEMI-BROWN LAWNS, AND LOW RIVER/STREAM FLOWS ACROSS THE FAR
NORTH BY LATE AUGUST, WHILE THE 110 TO 120 PERCENT RATIO SEEN AT
DOWNEAST LOCATIONS RESULTED IN MUCH THE OPPOSITE THERE. OF COURSE,
ACTUAL EVAPORATION VARIES SOMEWHAT FROM PLACE TO PLACE WITHIN OUR
REGION OVER THE COURSE OF A SUMMER. HOWEVER, AT THIS TIME, SUMMER
DAILY EVAPORATION IS ONLY MEASURED AT CARIBOU OVER THE NORTHERN/
EASTERN MAINE REGION TO MAKE ANY COMPARISONS TO OTHER LOCATIONS.

$$

CB/VJN


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