Climatological Report (Monthly) Issued by NWS Caribou, ME
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