Climatological Report (Monthly)
Issued by NWS Caribou, ME

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CXUS51 KCAR 010948
CLMBGR

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE CARIBOU ME
500 AM EDT TUE JUN 01 2021

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

...THE BANGOR ME CLIMATE SUMMARY FOR THE MONTH OF MAY 2021...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1925 TO 2021

WEATHER         OBSERVED          NORMAL  DEPART   LAST YEAR`S
                VALUE   DATE(S)   VALUE   FROM     VALUE DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH             96   05/22/1992
 LOW              23   05/03/1946
                       05/02/1943
                       05/01/1943
HIGHEST           85   05/26         MM      MM       88  05/22
LOWEST            32   05/07         MM      MM       28  05/06
AVG. MAXIMUM    66.9               65.7     1.2     65.5
AVG. MINIMUM    43.0               43.3    -0.3     41.4
MEAN            55.0               54.5     0.5     53.5
DAYS MAX >= 90     0                0.3    -0.3        0
DAYS MAX <= 32     0                0.0     0.0        0
DAYS MIN <= 32     1                1.7    -0.7        1
DAYS MIN <= 0      0                0.0     0.0        0

PRECIPITATION (INCHES)
RECORD
 MAXIMUM        7.65   1989
 MINIMUM        0.53   1982
TOTALS          1.82                      -1.52
DAILY AVG.      0.06               0.11   -0.05     0.07
DAYS >= .01        8               12.4    -4.4        8
DAYS >= .10        6                8.0    -2.0        5
DAYS >= .50        1                2.0    -1.0        2
DAYS >= 1.00       0                0.5    -0.5        0
GREATEST
 24 HR. TOTAL   1.40   04/30 TO 04/30               0.85  05/15 TO 05/16

SNOWFALL (INCHES)
RECORDS
 TOTAL           5.2   1963
TOTALS           0.0                0.0     0.0      1.0
SINCE 7/1       35.7               74.6   -38.9       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    310                333     -23      371
 SINCE 7/1      6800               7527    -727       MM
COOLING TOTAL      7                  7       0       20
 SINCE 1/1         7                  7       0       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              7.8
HIGHEST WIND SPEED/DIRECTION    33/340    DATE  05/23
HIGHEST GUST SPEED/DIRECTION    39/340    DATE  05/23

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.63
NUMBER OF DAYS FAIR            5
NUMBER OF DAYS PC             14
NUMBER OF DAYS CLOUDY         12

AVERAGE RH (PERCENT)     62

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM              2     MIXED PRECIP               0
HEAVY RAIN                2     RAIN                       2
LIGHT RAIN               14     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                       8     FOG W/VIS <= 1/4 MILE      0
HAZE                      0

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

&&

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

MAY 2021 FINISHED WITH NEAR NORMAL TEMPERATURES AND BELOW TO NEAR
NORMAL RAINFALL.

THE MONTH BEGAN COOL THROUGH THE FIRST COUPLE OF WEEKS THEN
TRANSITIONED TO ABOVE NORMAL TEMPERATURES MID TO LATE MONTH WITH
THE LAST 5 DAYS FINISHING ON THE DECIDELY COOL SIDE. THE WARMEST
DAYS WERE EXPERIENCED FROM THE 20TH THOUGH 22ND AND THE 26TH WITH
MOST LOW TERRAIN LOCATIONS INLAND FROM THE IMMEDIATE COAST
EXPERIENCING 80+ DEGREE HIGH TEMPS AND EVEN A FEW LOCATIONS
ACROSS CENTRAL AREAS IN THE LOWER 90S ON THE 26TH. SUB-FREEZING
MORNINGS OCCURRED INTERMITTENTLY DURING THE FIRST TWO WEEKS AND
AGAIN NOTABLY AT THE END OF THE MONTH WHEN SEVERAL GROWING SEASON
FROST/FREEZE HEADLINES WERE ISSUED TO PROTECT NEWLY PLANTED
OUTDOOR GARDENS.

RAINFALL VARIED SIGNIFICANTLY FROM AS LOW AS 60 PERCENT OF AVERAGE
OVER DOWNEAST AND LOWER PENOBSCOT VALLEY LOCATIONS UPWARDS TO 110
PERCENT OF AVERAGE ACROSS THE NORTH AND ALONG THE NEW BRUNSWICK
BORDER AS FAR SOUTH AS DANFORTH. AT BANGOR, THE MONTHLY TOTAL OF
1.82 INCHES WAS TIED AS 13TH LOWEST WITH 1993. SIGNIFICANT
RAINFALL EVENTS OCCURRED ACROSS AT LEAST PORTIONS OF THE REGION
ON THE 5TH-6TH, 11TH-12TH, 22ND-23RD, THE 30-31ST WITH THE LAST
EVENT BEING THE HEAVIEST AND MOST WIDESPREAD EVENT WITH UPWARDS
OF ONE INCH OR SLIGHTLY GREATER RAINFALL. THE ONLY SNOW OF NOTE
AT ANY OF THE CLIMATE SITES FELL AT FRENCHVILLE, CARIBOU, AND
HOULTON ON THE 5TH WHEN RAIN ENDED AS WET SNOW OR A MIX OF WET
SNOW AND RAIN WITH NO ACCUMULATION.

THE OUTLOOK FOR THE MONTH OF JUNE FROM THE CLIMATE PREDICTION
CENTER IS CALLING FOR GREATER PROBABILITIES OF ABOVE AVERAGE
TEMPERATURES AND EQUAL PROBABILITIES OF BELOW AVERAGE, NEAR
AVERAGE, OR ABOVE AVERAGE RAINFALL FOR OUR REGION. AVERAGE
TEMPERATURES FOR JUNE RANGE FROM LOWS OF AROUND 50 AND HIGHS OF
LOWER 70S ACROSS THE NORTH TO LOWS OF LOWER 50S AND HIGHS OF MID
70S FOR CENTRAL AND INTERIOR DOWNEAST AREAS. AVERAGE RAINFALL FOR
THE REGION AS A WHOLE IS AROUND 3.50 INCHES.

$$

VJN


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