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000
CXUS51 KCAR 060030 CCA
CLMCAR

CLIMATE REPORT...FINAL
NATIONAL WEATHER SERVICE CARIBOU ME
647 PM EDT THU AUG 03 2023

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

...THE CARIBOU ME CLIMATE SUMMARY FOR THE MONTH OF JULY 2023...

CLIMATE NORMAL PERIOD: 1991 TO 2020
CLIMATE RECORD PERIOD: 1939 TO 2023

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           91   07/06         MM      MM       87  07/18
                                                          07/21
LOWEST            50   07/31         MM      MM       44  07/10
AVG. MAXIMUM    80.6               77.1     3.5     79.4
AVG. MINIMUM    62.4               56.3     6.1     56.0
MEAN            71.5               66.7     4.8     67.7
DAYS MAX >= 90     2                0.7     1.3        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          4.49                       0.26
DAILY AVG.      0.14               0.14    0.00     0.13
DAYS >= .01       17               14.4     2.6       14
DAYS >= .10        9                8.4     0.6        8
DAYS >= .50        2                2.8    -0.8        2
DAYS >= 1.00       1                0.8     0.2        1
GREATEST
 24 HR. TOTAL   1.50   07/18 TO 07/19               1.54  07/18 TO 07/19

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       MM
SNOWDEPTH AVG.     0                                   0
DAYS >= 1.0        0                0.0     0.0        0
GREATEST
 SNOW DEPTH        0                                   0  MM
 24 HR TOTAL     0.0                                  MM

DEGREE DAYS
HEATING TOTAL      7                 42     -35       29
 SINCE 7/1         7                 39     -32       MM
COOLING TOTAL    215                 95     120      120
 SINCE 1/1       281                139     142       MM
................................................................

WIND (MPH)
AVERAGE WIND SPEED              5.4
HIGHEST WIND SPEED/DIRECTION    25/240    DATE  07/07
HIGHEST GUST SPEED/DIRECTION    36/250    DATE  07/07

SKY COVER
POSSIBLE SUNSHINE (PERCENT)   MM
AVERAGE SKY COVER           0.45
NUMBER OF DAYS FAIR           11
NUMBER OF DAYS PC             17
NUMBER OF DAYS CLOUDY          3

AVERAGE RH (PERCENT)     77

WEATHER CONDITIONS. NUMBER OF DAYS WITH
THUNDERSTORM             10     MIXED PRECIP               0
HEAVY RAIN                5     RAIN                       6
LIGHT RAIN               19     FREEZING RAIN              0
LT FREEZING RAIN          0     HAIL                       0
HEAVY SNOW                0     SNOW                       0
LIGHT SNOW                0     SLEET                      0
FOG                      19     FOG W/VIS <= 1/4 MILE      5
HAZE                      1

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

&&

...NORTHERN/EASTERN MAINE JULY 2023 CLIMATE MONTHLY SUMMARY...

JULY 2023 WILL BE REMEMBERED FOR VERY WARM AND HUMID CONDITIONS FOR
NORTHERN/EASTERN MAINE WITH NEAR TO ABOVE AVERAGE RAINFALL.

AFTER A RELATIVELY COOL MAY AND JUNE, TEMPERATURES ACROSS THE REGION
IN JULY RANGED FROM 3 TO 5 DEGREES ABOVE AVERAGE WITH THE HIGHEST
DEPARTURES ACROSS THE NORTH. IN FACT, JULY 2023 WAS THE WARMEST JULY
ON RECORD AT CARIBOU, BREAKING THE PREVIOUS WARMEST JULY OF 70.9 DEG
SET IN 2018. THE WARMEST AFTERNOONS OF THE MONTH WERE THE 6TH AND
7TH WHEN HIGHS OF LOWER 90S WERE REACHED AT THE CLIMATE SITES. THE
COOLEST EARLY MORNING LOW WAS ON THE 31ST WHEN LOWS OF UPPER 40S TO
LOWER 50S WERE RECORDED.

THE FOLLOWING TABLE LISTS AREA CLIMATE SITES WITHIN THE TOP 5
WARMEST JULYS AND CORRESPONDING WARMEST JULYS ON RECORD FOR
REFERENCE:

LOCATION  TEMP(DEG F) RANKING   WARMEST YEAR  (DEG F)

CARIBOU      71.5       1ST

HOULTON      71.2       2ND         1973       71.4

MILLINOCKET  72.4       2ND         1952       73.3

BANGOR       73.0       4TH         1935       74.1

IT`S INTERESTING TO NOTE THAT OVERNIGHT LOW TEMPERATURE DEPARTURES
WERE MORE RESPONSIBLE FOR THE WARMTH OF THIS MONTH THAN DAYTIME
HIGHS. FOR INSTANCE, AT CARIBOU, THE AVERAGE MAXIMUM TEMPERATURE FOR
JULY 2023 OF 80.6 DEGREES WAS 4TH WARMEST, FINISHING BEHIND THE
PREVIOUS WARMEST JULY 2018 AVERAGE MAX TEMP OF 82.4 DEGREES. THE
AVERAGE MINIMUM TEMPERATURE OF 62.4 DEGREES, HOWEVER, OUTPACED THE
PRIOR HIGHEST AVERAGE MINIMUM TEMPERATURE 59.9 DEGREES FROM JULY
2020 BY A LITTLE MORE MARGIN THEN THE DIFFERENCE IN AVERAGE MAXIMUM
HIGH TEMPS FROM THE FIRST AND SECOND PLACE FINISHERS, RESULTING IN
JULY 2023 BEING THE NEW AVERAGE TEMPERATURE RECORD HOLDER. THE KEY
TO VERY WARM OVERNIGHT LOW TEMPS THIS MONTH, ESPECIALLY ACROSS THE
NORTH, WAS A CONTINUED SOUTH TO SOUTHWEST WIND FLOW WITH NO
SIGNIFICANT COLD FRONTAL PASSAGES UNTIL THE END OF THE MONTH. THIS
RESULTED IN MANY DAYS WITH HUMID DEWPOINT TEMPERATURES OF MID TO
UPPER 60S AND EVEN A FEW DAYS WITH VERY TROPICAL DEWPOINTS INTO THE
LOWER 70S WITH VERY LITTLE BREAKS. THE FIRST SIGNIFICANT COLD FRONT
PASSAGE RESULTED IN COOLER DAYTIME TEMPS ACCOMPANIED BY DEWPOINTS OF
50S OR LESS FROM THE 29TH-31ST OF THE MONTH.

RAINFALL ACROSS THE REGION THIS MONTH AS TYPICAL FOR SUMMER MONTHS
WAS SOMEWHAT PATCHY, RANGING FROM AS LOW AS 80 PERCENT ACROSS
PORTIONS OF THE NORTH AND PENOBSCOT BAY AREA UPWARDS TO LOCALLY 200
PERCENT OF AVERAGE ACROSS SOME EAST CENTRAL LOCATIONS.
THE CLIMATE SITES RANGED FROM 90 TO 140 PERCENT OF AVERAGE, WITH
NONE RECORDING TOP 15 MAXIMUM TOTALS FOR JULY. THE JULY 2023 TOTAL
PAN EVAPORATION OF 5.05 INCHES AT CARIBOU WAS GREATER THAN RAINFALL
AT MOST LOCATIONS WITHIN THE REGION, MEANING SOILS HAD A CHANCE TO
DRY OUT SOME FROM LAST MONTHS HEAVY RAINFALL.

$$

VJN/CB