Climatological Report (Monthly)
Issued by NWS Caribou, ME

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CXUS51 KCAR 011211
CLMCAR

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE CARIBOU ME
707 AM EST SUN NOV 01 2020

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE MONTH OF OCTOBER 2020...

CLIMATE NORMAL PERIOD: 1981 TO 2010
CLIMATE RECORD PERIOD: 1939 TO 2020

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             82   10/09/2011
 LOW              14   10/19/1972
                       10/22/1940
HIGHEST           70   10/10         MM      MM       66  10/31
LOWEST            17   10/31         MM      MM       26  10/27
AVG. MAXIMUM    52.4               52.0     0.4     55.0
AVG. MINIMUM    35.1               34.6     0.5     37.3
MEAN            43.7               43.3     0.4     46.2
DAYS MAX >= 90     0                0.0     0.0        0
DAYS MAX <= 32     0                0.1    -0.1        0
DAYS MIN <= 32    13               12.5     0.5        8
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        8.73   1990
 MINIMUM        0.63   1955
TOTALS          7.21                       3.68
DAILY AVG.      0.23               0.11    0.12     0.13
DAYS >= .01       17               13.1     3.9       12
DAYS >= .10       12                7.6     4.4        5
DAYS >= .50        6                2.2     3.8        2
DAYS >= 1.00       1                0.7     0.3        1
GREATEST
 24 HR. TOTAL   2.45   10/13 TO 10/14               1.70  10/23 TO 10/23

SNOWFALL (INCHES)
RECORDS
 TOTAL          12.1   1963
TOTALS           1.5                1.6    -0.1        T
SINCE 7/1        1.5                1.7    -0.2       MM
SNOWDEPTH AVG.     T                                  MM
DAYS >= 1.0        1                0.3     0.7       MM
GREATEST
 SNOW DEPTH       MM                                  MM  MM
 24 HR TOTAL      MM                                  MM

DEGREE DAYS
HEATING TOTAL    650                673     -23      578
 SINCE 7/1       984               1139    -155       MM
COOLING TOTAL      0                  0       0        0
 SINCE 1/1       479                180     299       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.2
HIGHEST WIND SPEED/DIRECTION    30/310    DATE  10/08
HIGHEST GUST SPEED/DIRECTION    42/310    DATE  10/08
                                42/310          10/17

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.55
NUMBER OF DAYS FAIR            9
NUMBER OF DAYS PC             10
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     70

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              1     MIXED PRECIP               0
HEAVY RAIN                7     RAIN                      11
LIGHT RAIN               18     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       1
LIGHT SNOW                3     SLEET                      0
FOG                      18     FOG W/VIS <= 1/4 MILE      1
HAZE                      1

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

&&

...OCTOBER 2020 NORTHERN AND EASTERN MAINE MONTHLY CLIMATE
NARRATIVE...

OCTOBER 2020 FINISHED WITH NEAR NORMAL TEMPERATURES BUT WITH WELL
ABOVE AVERAGE RAINFALL FOR THE REGION AS A WHOLE.

THE FIRST TWO THIRDS OF THE MONTH HAD MORE ABOVE AVERAGE TEMPERATURE
DAYS THAN BELOW, BUT THE LAST THIRD OF THE MONTH FINISHED DECIDELY
BELOW AVERAGE. THE AFTERNOON OF THE 10TH WAS THE WARMEST, WITH MOST
OF THE AREA, EXCEPT THE SAINT JOHN VALLEY, REACHING INTO THE LOWER
70S. THE COLDEST MORNING WAS THE 31ST WHERE MOST LOCATIONS NORTH OF
THE IMMEDIATE COAST EXPERIENCED LOWS IN THE TEENS, WITH SINGLE DIGIT
ABOVE ZERO LOWS IN THE COLDEST NORTHERN VALLEYS.

THE BIGGEST STORY OF THE MONTH WAS TOTAL PRECIPITATION WHICH SHARPLY
REVERSED A PRIOR FIVE CONSECUTIVE MONTH BELOW AVERAGE TREND AND PUT
A SIGNIFICANT DENT IN THE REGIONAL DROUGHT THAT BEGAN EARLY LAST
SUMMER. RAINFALL TOTALS RANGED UPWARDS FROM 100 TO 130 PERCENT OF
AVERAGE OVER DOWNEAST AREAS TO 130 TO 160 PERCENT OVER CENTRAL AREAS
TO 160 TO 220 PERCENT OF AVERAGE ACROSS THE NORTH AND CENTRAL
HIGHLANDS. THE LARGEST TWO RAINFALL EVENTS FELL BACK TO BACK ON THE
13TH/14TH AND 16TH/17TH WITH MANY LOCATIONS ACROSS THE NORTH AND
CENTRAL MAINE HIGHLANDS RECEIVING UPWARDS TO 2 TO 3 INCHES IN EACH
EVENT. THE DROUGHT PATTERN ACTUALLY BEGAN BREAKING WITH SIGNIFICANT
RAINFALL ON THE 2ND, FOLLOWED BY ADDITIONAL EVENTS EVERY 2 TO 3 DAYS
OR SO. AT CARIBOU, THE TOTAL OF 7.21 INCHES FOR OCTOBER 2020 WAS
THIRD WETTEST OF RECORD, SIGNIFICANTLY BELOW THE WETTEST OCTOBER OF
8.73 INCHES SET IN 1990. THE 6.08 INCH TOTAL AT HOULTON WAS THEIR
9TH WETTEST AND THE 6.48 INCH TOTAL AT MILLINOCKET WAS THEIR 15TH
WETTEST OF RECORD.

TYPICAL OF MOST OCTOBERS, THE SEASONS FIRST SNOWFALL OF THE SEASON
OCCURRED LATE IN THE MONTH ON 26TH ACROSS THE NORTH WITH MOST
LOCATIONS RECEIVING BETWEEN 1 TO 3 INCHES, EXCEPT LOCALLY HEAVY 6 TO
10 INCHES OF SNOWFALL OVER THE HIGHLANDS OF NORTHERN SOMERSET COUNTY
NEAR THE QUEBEC BORDER. NOTEWORTHY WINDY DAYS WITH GUSTS IN THE 30S
AND 40S MPH OCCURRED ON THE 8TH-11TH AND AGAIN ON THE 17TH MOSTLY
ASSOCIATED WITH POST COLD FRONTAL NORTHWEST WINDS.

THE CLIMATE PREDICTION CENTER`S OUTLOOK FOR THE MONTH OF NOVEMBER IS
CALLING FOR INCREASED PROBABILITY OF ABOVE NORMAL TEMPERATURES AND
EQUAL CHANCES OF BELOW, NEAR NORMAL, OR ABOVE NORMAL PRECIPITATION.
AVERAGE TEMPERATURES RANGE FROM LOWS/HIGHS OF MID 20S/UPPER 30S FAR
NORTH TO AROUND 30/MID TO UPPER 40S ALONG THE DOWNEAST COAST.
AVERAGE PRECIPITATION RANGES FROM ABOUT 3.50 INCHES FAR NORTH TO
4.25 INCHES ALONG THE DOWNEAST COAST. AVERAGE SNOWFALL RANGES FROM
ABOUT 2 INCHES ALONG THE DOWNEAST COAST TO NEARLY 12 INCHES ACROSS
THE FAR NORTH.

$$

VJN



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