June 2023 Climate Summary for Northern and Eastern Maine
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Public Information Statement
National Weather Service Caribou ME
513 AM EDT Mon Jul 3 2023
...Northern/Eastern Maine June 2023 Climate Monthly Summary...
June 2023 will be mostly remembered for cloudy, cool, and rainy
conditions for Northern/Eastern Maine.
The month overall finished with average temps of about 0.5 to 1,0
degrees below 1991-2020 30 year mean averages, except 1 to 2
degrees below average for Downeast areas. The warmest day of the
month, interestingly enough, occurred on the very first day
(a continuation of the warm spell from the end of May) with
highs of lower to mid 90s at all lower terrain locations inland
from the immediate coast, easily breaking record highs for the
date. This was immediately followed up by a very strong back door
cold front from Labrador Canada on the 2nd and very cool and
rainy weather over the area for the next week as an upper low
settled over the region. At Caribou, the 7 day period from the 3rd
through the 9th was the longest stretch of consecutive sub-60
degree high temps recorded in June, with the previous record 6
days in 1945 and 1977. Also the total of 9 sub-60 degree high
temps at Caribou this month was the second greatest recorded since
records began in 1939 with 10 the all time record set in 1977.
Another shorter cool and rainy period mostly affecting northern
areas occurred from the 16th-20th. Temperatures warmed
significantly afterwards across the region and were above normal
from the 22nd through 25th followed by near normal temps for the
remainder of the month.
Rainfall across the area was mostly above to well above monthly
averages ranging from 130 to locally 200+ percent of average,
except in the Caribou and Bar Harbor areas which received 85 to
100 percent of average. Interestingly, Caribou experienced 20 days
of measurable rainfall over the course of the month, but unlike
most other locations across the region, did not experience heavy
rainfall on any day. Significant to heavy rainfall fell at least
across portions of the region from the 3rd - 10th, 16th - 18th,
and the 24th - 29th resulting in the postponement and/or
cancellation of some outdoor events. A few Cooperative Observer
sites in Piscataquis county reported monthly total rainfall
exceeding 9 inches. The following table lists area climate sites
within the top 20 of rainiest Junes and corresponding wettest
Junes on record for reference:
Location Amount (inches) Ranking Wettest Year Amount
Millinocket 7.06 11th 1922 10.82
Houlton 6.07 6th 2012 11.51
Bangor 5.83 8th 2010 8.10
Another interesting feature of this month was the lack of severe
weather with no reports of hail size equal or greater than 1 inch
diameter or wind gusts (or equivalent damage) equal or greater
than 58 mph, marking only the 3rd June of this occurring along
with 2014 and 2019. Lastly, the monthly total evaporation of 3.88
inches as measured at the Caribou weather station was greatly
exceeded by rainfall this month at most locations, resulting in
muddy and soft grassy areas across the region along with some high
stream levels especially over central/western portions of the
region.
$$
VJN/CB
posted by Advackia at 7:19 PM
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