Climatological Report (Monthly)
Issued by NWS Caribou, ME

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CXUS51 KCAR 010749
CLMCAR

CLIMATE REPORT...PRELIMINARY
NATIONAL WEATHER SERVICE CARIBOU, ME
306 AM EDT WED AUG 1 2018

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE MONTH OF JULY 2018...

CLIMATE NORMAL PERIOD 1981 TO 2010
CLIMATE RECORD PERIOD 1939 TO 2018

WEATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                 VALUE   DATE(S)  VALUE   FROM    VALUE  DATE(S)
                                          NORMAL
................................................................
TEMPERATURE (F)
RECORD
 HIGH              95   07/20/1991
                        07/19/1991
                        07/25/1989
 LOW               36   07/07/1969
HIGHEST            94   07/05        MM      MM       86  07/19
LOWEST             46   07/19        MM      MM       42  07/23
AVG. MAXIMUM     82.4              76.0     6.4     76.9
AVG. MINIMUM     59.4              55.2     4.2     55.1
MEAN             70.9              65.6     5.3     66.0
DAYS MAX >= 90      2               0.5     1.5        0
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         7.96   2011
 MINIMUM         0.16   1947
TOTALS           2.19                     -1.89
DAILY AVG.       0.07              0.13   -0.06     0.08
DAYS >= .01         8              14.2    -6.2       15
DAYS >= .10         5               8.6    -3.6        6
DAYS >= .50         2               2.7    -0.7        1
DAYS >= 1.00        0               0.8    -0.8        1
GREATEST
 24 HR. TOTAL    0.65   07/06 TO 07/06           07/07 TO 07/07
                                                          07/31 TO 07/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          07/31 TO 07/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

SNOWFALL (INCHES)
RECORDS
 TOTAL            0.0   MM
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   07/31 TO 07/31           07/31 TO 07/31
                                                          07/31 TO 07/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S
                                                          07/31 TO 07/31EATHER         OBSERVED          NORMAL  DEPART  LAST YEAR`S

DEGREE_DAYS
HEATING TOTAL      17                58     -41       39
 SINCE 7/1         17                58     -41       39
COOLING TOTAL     206                77     129       78
 SINCE 1/1        227               116     111      129
.................................................................

WIND (MPH)
AVERAGE WIND SPEED              6.6
HIGHEST WIND SPEED/DIRECTION    25/230    DATE  07/08
HIGHEST GUST SPEED/DIRECTION    33/350    DATE  07/10

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.30
NUMBER OF DAYS FAIR           16
NUMBER OF DAYS PC             13
NUMBER OF DAYS CLOUDY          2
AVERAGE RH (PERCENT)          66
            1

-  INDICATES NEGATIVE NUMBERS.
R  INDICATES RECORD WAS SET OR TIED.
MM INDICATES DATA IS MISSING.
T  INDICATES TRACE AMOUNT.
---------------------------------------------------------------------
...JULY 2018 MONTHLY CLIMATE NARRATIVE FOR NORTHERN AND EASTERN
MAINE...

JULY 2018 WAS THE ALL-TIME WARMEST MONTH ON RECORD AT CARIBOU,
MAINE. THE AVERAGE TEMPERATURE OF 70.9 DEGREES WAS 5.3 DEGREES
ABOVE AVERAGE (1981-2010 AVERAGES). PRIOR TO THIS JULY, THE
WARMEST MONTH AT CARIBOU WAS JULY 1970 WITH AN AVERAGE TEMPERATURE
OF 69.6 DEGREES. WEATHER RECORDS HAVE BEEN KEPT AT CARIBOU SINCE
1939. ALL OF THE TOP TEN WARMEST MONTHS AT CARIBOU HAVE OCCURRED
DURING THE MONTH OF JULY.

AS A WHOLE, TEMPERATURES AVERAGED FROM 3 TO 7 DEGREES ABOVE
AVERAGE ACROSS NORTHERN AND EASTERN MAINE. AT HOULTON, IT RANKED
AS THE 10TH WARMEST JULY WITH AN AVERAGE TEMPERATURE OF 68.9
DEGREES. AT MILLINOCKET, IT TIED WITH 2013 AS THE 6TH WARMEST JULY
ON RECORD WITH AN AVERAGE TEMPERATURE OF 71.2. AT BANGOR, IT TIED
WITH 2008 FOR THE 8TH WARMEST JULY ON RECORD WITH AN AVERAGE
TEMPERATURE OF 71.0 DEGREES.

AT CARIBOU, THERE WERE A TOTAL OF 22 DAYS WITH A HIGH OF 80
DEGREES OR WARMER, WHICH WAS THE MOST ON RECORD FOR ANY MONTH.
THERE WERE 3 CONSECUTIVE NIGHTS WITH A LOW OF 71 DEGREES FROM THE
23RD TO THE 25TH. THE LOW OF 71 DEGREES IS THE ALL-TIME RECORD
WARM LOW TEMPERATURE AT CARIBOU, AND HAD LAST BEEN OBSERVED BACK
IN JULY 1975.

AS IS USUALLY THE CASE, PRECIPITATION WAS MORE VARIABLE ACROSS THE
REGION. RAINFALL RANGED FROM 50 TO 90 PERCENT OF NORMAL ACROSS
MOST OF THE DOWNEAST REGION AND EASTERN MAINE, AND FROM 130 TO
200 PERCENT OF NORMAL ACROSS THE CENTRAL HIGHLANDS AND THE FAR
WESTERN SAINT JOHN VALLEY. AREAS AROUND BAR HARBOR AND IN THE
SAINT JOHN VALLEY WERE ABNORMALLY DRY ACCORDING THE U.S. DROUGHT
MONITOR AS OF LATE JULY.

THE OUTLOOK FOR AUGUST 2018 FROM THE CLIMATE PREDICTION CENTER IS
CALLING FOR AN INCREASED LIKELIHOOD OF ABOVE AVERAGE
TEMPERATURES. THERE ARE NO STRONG CLIMATE SIGNALS THAT WOULD POINT
TOWARD AN UNUSUALLY WET OR DRY MONTH. NORMAL HIGH TEMPERATURES
REACH THEIR WARMEST LEVELS EARLY IN THE MONTH WITH AN AVERAGE HIGH
OF 76 AT CARIBOU AND 80 DEGREES AT BANGOR. BY THE END OF THE
MONTH THE AVERAGE HIGH FALLS TO 71 AT CARIBOU AND TO 75 AT BANGOR.
AVERAGE LOWS RANGE FROM THE MID 50S AT CARIBOU TO 60 DEGREES AT
BANGOR AT THE START OF THE MONTH AND FALL TO THE UPPER 40S AT
CARIBOU AND LOW 50S AT BANGOR. AVERAGE RAINFALL ACROSS THE REGION
AS A WHOLE IS 3 TO 4 INCHES, BUT TENDS TO BE HIGHLY VARIABLE DUE
TO THE NATURE OF SHOWERS AND THUNDERSTORMS. NEARLY 1 1/2 HOURS OF
DAYLIGHT IS LOST DURING THE MONTH OF AUGUST.

$$

CB/VJN


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