000
CXUS51 KCAR 070049
CLSCAR

CLIMATE REPORT
NATIONAL WEATHER SERVICE CARIBOU ME
848 PM EDT MON SEP 06 2021

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE SEASON, FROM
6/1/2021 TO 8/31/2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2021

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           92   06/07         MM      MM       96  06/19
                       06/08
                       08/13
LOWEST            38   06/11         MM      MM       31  06/02
AVG. MAXIMUM    77.2               75.0     2.2     77.7
AVG. MINIMUM    55.3               53.7     1.6     54.9
MEAN            66.2               64.3     1.9     66.3
DAYS MAX >= 90     5                1.7     3.3        6
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     0                0.1    -0.1        2
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        5.90   2020
 MINIMUM        5.90   2020
TOTALS          8.81              11.73   -2.92     5.90
DAILY AVG.      0.09               0.13   -0.04     0.07
DAYS >= .01       35               41.2    -6.2       29
DAYS >= .10       19               23.7    -4.7       18
DAYS >= .50        7                7.8    -0.8        5
DAYS >= 1.00       1                2.1    -1.1        0
GREATEST
 24 HR. TOTAL   1.13   0MM09 TO 07/09               0.74

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

DEGREE DAYS
HEATING TOTAL    181                261     -80      205
 SINCE 7/1       104                113      -9       MM
COOLING TOTAL    319                201     118      351
 SINCE 1/1       342                207     135       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.2
HIGHEST WIND SPEED/DIRECTION    28/220    DATE  06/21
HIGHEST GUST SPEED/DIRECTION    44/230    DATE  06/21

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.42
NUMBER OF DAYS FAIR           45
NUMBER OF DAYS PC             32
NUMBER OF DAYS CLOUDY         15

AVERAGE RH (PERCENT)     68

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             11     MIXED PRECIP               0
HEAVY RAIN               13     RAIN                      15
LIGHT RAIN               44     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       1
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      34     FOG W/VIS <= 1/4 MILE      4
HAZE                      3

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

...2021 SUMMER CLIMATE NARRATIVE FOR NORTHERN AND EASTERN MAINE...

METEOROLOGICAL SUMMER (JUNE THROUGH AUGUST) OF 2021 ACROSS NORTHERN
AND EASTERN MAINE WAS WARMER THAN NORMAL. PRECIPITATION WAS NEAR TO
A BIT ABOVE NORMAL ACROSS THE DOWNEAST REGION, AND BELOW TO WELL
BELOW NORMAL ACROSS NORTHERN AREAS.

IN CARIBOU, IT RANKED AS THE 3RD WARMEST SUMMER ON RECORD BEHIND
ONLY 2018 AND 2020. SIX OF THE TOP 10 WARMEST SUMMERS IN CARIBOU
HAVE BEEN OBSERVED SINCE 2010. IN HOULTON, IT RANKED AS THE 6TH
WARMEST SUMMER ON RECORD. BANGOR AND MILLINOCKET BOTH OBSERVED THEIR
7TH WARMEST SUMMER ON RECORD.

ALTHOUGH IT WAS A DRY SUMMER ACROSS NORTHERN MAINE, NONE OF THE LONG
TERM CLIMATE SITES OBSERVED A TOP 10 DRIEST SUMMER. CARIBOU CAME THE
CLOSEST WITH THE 14TH DRIEST SUMMER ON RECORD.

ON JUNE 1ST, THERE WERE NO DROUGHT CONDITIONS OBSERVED ACROSS THE
REGION. BY AUGUST 31ST, MODERATE DROUGHT WAS OBSERVED ACROSS MOST OF
THE REGION TO THE NORTH AND WEST OF BAXTER STATE PARK.

JUNE 2021 WAS A VERY WARM MONTH AND IT WAS THE ALL-TIME WARMEST ON
RECORD IN CARIBOU. HOULTON AND MILLINOCKET BOTH OBSERVED THEIR 2ND
WARMEST JUNE ON RECORD; AND FINALLY IN BANGOR IT WAS THE 4TH WARMEST
ON RECORD. IN BANGOR, IT WAS THE 2ND DRIEST JUNE ON RECORD WITH ONLY
0.97" OF RAIN. THE MOST SIGNIFICANT WEATHER EVENTS OF THE MONTH WERE
A FLASH FLOODING EVENT EARLY ON THE MORNING OF THE 9TH WITH LOCALLY
UP TO 5 INCHES OF RAIN IN PARTS OF HANCOCK AND WASHINGTON COUNTIES.
ON THE 21ST, THERE WERE MICROBURSTS THAT PRODUCED WIND THAT WAS
ESTIMATED AT 100 TO 110 MPH IN LIMESTONE, AND 90 TO 100 MPH FROM
CASTLE HILL TO JUST SOUTHWEST OF CARIBOU.

JULY WAS A COOLER THAN AVERAGE MONTH, AND WAS THE FIRST MONTH SINCE
MAY 2020 WITH BELOW AVERAGE TEMPERATURES. IT WAS THE COOLEST JULY
SINCE 2009 IN CARIBOU, HOULTON, MILLINOCKET, AND BANGOR.
PRECIPITATION WAS WELL ABOVE AVERAGE DOWNEAST AND IT WAS THE ALL-
TIME WETTEST JUNE ON RECORD IN BANGOR WITH 7.67" OF RAIN. IN WHAT IS
TYPICALLY THE MOST ACTIVE MONTH OF THE YEAR FOR SEVERE WEATHER,
THERE WERE ONLY TWO SEVERE THUNDERSTORM WARNINGS ISSUED ALL MONTH.

AUGUST FEATURED WELL ABOVE AVERAGE TEMPERATURES, AND WAS THE ALL-
TIME WARMEST IN CARIBOU AND HOULTON, THE 2ND WARMEST IN MILLINOCKET,
AND THE 7TH WARMEST IN BANGOR. RAINFALL WAS BELOW AVERAGE ACROSS
MOST OF THE REGION, AND RANGED FROM AS LOW AS 40 PERCENT OF AVERAGE
ACROSS THE NORTH AND FAR WEST. RAINFALL WAS CLOSER TO AVERAGE
DOWNEAST DUE TO RAINFALL ASSOCIATED WITH THE REMNANT LOW PRESSURE OF
HENRI.

$$

CB/VJN