National Weather Service United States Department of Commerce

...JULY MONTHLY CLIMATE NARRATIVE FOR NORTHERN AND EASTERN MAINE...

SIMILAR TO JUNE, JULY WAS ANOTHER MONTH WITH ABOVE AVERAGE
TEMPERATURES ACROSS NORTHERN AND EASTERN MAINE. TEMPERATURES
AVERAGED FROM 2 TO 4.5 DEGREES ABOVE AVERAGE. IN CARIBOU, IT WAS
THE 2ND WARMEST JULY ON RECORD BEHIND ONLY 2018. IT ALSO RANKED AS
THE 2ND ALL-TIME WARMEST MONTH IN CARIBOU SINCE WEATHER RECORDS
BEGAN IN 1939. IN HOULTON, IT WAS THE 11TH WARMEST JULY ON RECORD,
IN MILLINOCKET THE 15TH WARMEST, AND IN BANGOR IT WAS THE 12TH
WARMEST ON RECORD.

THERE WERE A TOTAL OF 20 DAYS WITH A HIGH OF 80 DEGREES OR WARMER IN
CARIBOU, WHICH IS THE 2ND MOST ON RECORD BEHIND ONLY 2018 WHEN THERE
WERE 21 DAYS ABOVE 80F. MILLINOCKET ALSO HAD 20 DAYS WITH A HIGH OF
80 DEGREES OR WARMER, WHICH WAS THE 9TH MOST ON RECORD.  BANGOR AND
HOULTON DID NOT RANK IN THE TOP 10 FOR THE NUMBER OF 80 DEGREE DAYS.

FOR THE COMBINED 2-MONTHS OF JUNE AND JULY 2020 IT WAS THE ALL-
TIME WARMEST ON RECORD IN CARIBOU BY A FULL DEGREE WITH AN
AVERAGE 2 MONTH TEMPERATURE OF 67.2 DEGREES, WHICH BROKE THE
RECORD OF 66.2 DEGREES IN 2006. IN HOULTON, IT RANKED AS THE 9TH
WARMEST 2 MONTH PERIOD, IN MILLINOCKET IT RANKED AS THE 7TH
WARMEST, AND IN BANGOR IT WAS THE 11TH WARMEST.

MODERATE DROUGHT CONDITIONS WERE OBSERVED ACROSS ALL OF NORTHERN
AND EASTERN MAINE IN JULY WITH A MUCH SMALLER AREA OF SEVERE
DROUGHT ACROSS PARTS OF THE SAINT JOHN VALLEY. NEAR RECORD LOW
STREAM FLOWS WERE REPORTED ACROSS AROOSTOOK COUNTY, ESPECIALLY
DURING THE FIRST HALF OF THE MONTH. SHORT TO VERY SHORT TOPSOIL
MOISTURE WAS REPORTED IN MANY AREAS OF NORTHERN AND EASTERN MAINE.
THE DRY CONDITIONS IMPACTED AGRICULTURAL INTEREST WITH REDUCED
HAY AND GRAIN CROPS AND LED TO AN INCREASED NEED TO IRRIGATE
CROPS.

THE MONTH BEGAN VERY DRY, BUT RAINFALL DID BECOME MORE FREQUENT
FROM THE 2ND WEEK OF THE MONTH THROUGH THE END OF THE MONTH. IN
CARIBOU, A TOTAL OF 3.04 INCHES OF RAIN WAS OBSERVED, WHICH WAS
ABOUT 75 PERCENT OF NORMAL. IN HOULTON, 3.13 INCHES OF RAIN FEEL,
WHICH WAS JUST 53 HUNDREDTHS OF AN INCH BELOW NORMAL. IN
MILLINOCKET, 4.02 INCHES OF RAIN FELL, WHICH WAS 17 HUNDRETHS OF
AN INCH ABOVE AVERAGE. IN BANGOR, 4.21 INCHES OF RAIN WAS
OBSERVED, WHICH WAS THREE QUARTERS OF AN INCH ABOVE AVERAGE. THE
RAINFALL WAS A COMBINATION OF MOSTLY SHOWERS AND THUNDERSTORMS,
AND MANY AREAS IN WASHINGTON COUNTY AND NORTHERN AROOSTOOK COUNTY
HAD WELL BELOW AVERAGE RAINFALL THAT RANGED FROM AS LITTLE AS 25
PERCENT OF NORMAL IN PARTS OF THE SAINT JOHN VALLEY TO 5O TO 70
PERCENT OF NORMAL IN WASHINGTON COUNTY.

FOR THE 2-MONTH PERIOD OF JUNE AND JULY IT WAS THE 3RD DRIEST ON
RECORD IN CARIBOU WITH ONLY 3.92 INCHES OF RAIN.  HOULTON HAD THE
5TH DRIEST JUNE AND JULY COMBINED WITH 4.31 INCHES. MILLINOCKET AND
BANGOR DID NOT RANK IN THE TOP 20 FOR THE DRIEST COMBINED JUNE AND
JULY ON RECORD.

THE OUTLOOK FOR THE MONTH OF AUGUST IS CALLING FOR CONTINUED
GREATER PROBABILITIES OF ABOVE NORMAL TEMPERATURES. THERE IS AN
INCREASED PROBABILITY OF ABOVE AVERAGE PRECIPITATION ACROSS THE
DOWNEAST REGION AND NO STRONG CLIMATE SIGNALS THAT WOULD POINT
TOWARD ABOVE OR BELOW AVERAGE PRECIPITATION ACROSS THE REMAINDER
OF THE REGION. AVERAGE TEMPERATURES BEGIN TO SLOWLY FALL,
ESPECIALLY DURING THE 2ND HALF OF THE MONTH. IN CARIBOU, THE
AVERAGE HIGH ON THE 1ST IS 76 DEGREES AND IT FALLS TO 71 BY THE
END OF THE MONTH. THE AVERAGE LOW DROPS FROM 55 ON THE 1ST TO 49
BY THE END OF THE MONTH. ON AVERAGE, THERE IS 3.76 INCHES OF RAIN.
IN BANGOR, THE AVERAGE HIGH FALLS FROM 80 DEGREES ON THE FIRST TO
76 BY THE END OF THE MONTH. THE AVERAGE LOW FALLS FROM 58 TO 53
DEGREES. NEARLY AN HOUR AND A HALF OF DAYLIGHT IS LOST DURING THE
MONTH OF AUGUST.