June 2018 Climate Review for northern and eastern Maine

...JUNE 2018 MONTHLY CLIMATE NARRATIVE FOR NORTHERN AND EASTERN
MAINE...

JUNE 2018 FINISHED WITH BELOW NORMAL TEMPERATURES. PRECIPITATION
WAS MORE VARIABLE AND RANGED FROM 50 TO 90 PERCENT OF NORMAL
ACROSS MOST AREAS FROM THE KATAHDIN REGION NORTH TO THE SAINT JOHN
VALLEY, AND FROM 90 TO 150 PERCENT OF NORMAL ACROSS THE DOWNEAST
REGION.

TEMPERATURES ACROSS THE REGION AVERAGED FROM 1 TO 3 DEGREES BELOW
AVERAGE. THERE WERE LARGE DIURNAL TEMPERATURE RANGES FROM DAY TO
NIGHT ON MANY DAYS WITH A LOT OF COOL NIGHTS. THERE WERE 5 NIGHTS
WITH LOWS IN THE 30S AT CARIBOU, WHICH WAS THE MOST SINCE 2002.
THERE WERE 9 SUCH NIGHTS AT HOULTON, WHICH WAS THE MOST SINCE
2000. SOME OF THE NORMALLY COLDER VALLEYS IN NORTHWEST MAINE HAD
LIGHT FROSTS WELL INTO THE 2ND HALF OF THE MONTH, AND ESTCOURT
STATION HAS A LOW OF 29 DEGREES ON THE MORNING OF THE 22ND.

THE FIRST HALF OF THE MONTH WAS VERY DRY WITH VERY LITTLE
RAINFALL. RAINFALL BECOME MORE FREQUENT DURING THE 2ND HALF OF THE
MONTH WITH THE HEAVIEST EVENT ON THE 28TH INTO THE 29TH WHEN
SEVERAL LOCATIONS IN HANCOCK AND WASHINGTON COUNTIES OBSERVED OVER
2 INCHES OF RAIN. THE TOTAL RAINFALL FOR THE MONTH AT BANGOR WAS
5.42 INCHES, WHICH WAS 1.66 INCHES ABOVE AVERAGE. PRECIPITATION
WAS BELOW AVERAGE AT CARIBOU, HOULTON, AND MILLINOCKET.

THE OUTLOOK FOR JULY 2018 FROM THE CLIMATE PREDICTION CENTER IS
CALLING FOR AN INCREASED LIKELIHOOD OF ABOVE AVERAGE TEMPERATURES
AND AN INCREASED CHANCE OF BELOW AVERAGE PRECIPITATION. NORMAL
HIGH TEMPERATURES REACH THEIR WARMEST LEVELS DURING MID-LATE MONTH
WITH AN AVERAGE HIGH OF 76 AT CARIBOU AND 80 DEGREES AT BANGOR.
AVERAGE LOWS RANGE FROM THE MID 50S AT CARIBOU TO 60 DEGREES AT
BANGOR. AVERAGE RAINFALL ACROSS THE REGION AS A WHOLE IS AROUND
3.50 TO 4 INCHES, BUT TENDS TO BE HIGHLY VARIABLE DUE TO THE
NATURE OF SHOWERS AND THUNDERSTORMS. 53 MINUTES OF DAYLIGHT IS
LOST DURING THE MONTH AT CARIBOU.

Images courtesy of the Northeast Regional Climate Center