Public Information Statement
Issued by NWS Caribou, ME

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Public Information Statement
National Weather Service Caribou ME
244 AM EDT Sat Jun 10 2017

...NORTHERN AND EASTERN MAINE SPRING SEASONAL CLIMATE NARRATIVE...

THE METEOROLOGICAL SPRING OF 2017 COMPRISING MARCH THROUGH MAY
FINISHED WITH SLIGHTLY BELOW AVERAGE TEMPERATURES AND ABOVE AVERAGE
PRECIPITATION.

TEMPERATURE DEPARTURES FOR THE SEASON AS A WHOLE WERE SMALL RANGING
FROM JUST 2 TENTHS OF A DEGREE BELOW AVERAGE AT CARIBOU TO 1.4
DEGREES BELOW AVERAGE AT BANGOR. PRECIPITATION RANGED FROM 110 TO
150 PERCENT OF AVERAGE.

MARCH WAS COLD MONTH AND TEMPERATURES AVERAGED FROM 4 TO 6 DEGREES
BELOW THE 1981-2010 AVERAGES.  A BLAST OF ARCTIC AIR KEPT HIGH
TEMPERATURES BELOW ZERO ACROSS PARTS OF NORTHERN MAINE ON THE 11TH.
THE HIGH OF 1 BELOW AT CARIBOU WAS THE LATEST SUB-ZERO MAXIMUM
TEMPERATURE ON RECORD. THE HIGH OF 2 DEGREES AT HOULTON WAS THE
ALL-TIME LOWEST HIGH TEMPERATURE EVER OBSERVED DURING THE MONTH OF
MARCH. THE SNOW DEPTH INCREASED IN SOME SPOTS ACROSS NORTHERN
MAINE, AND THE MONTH ENDED WITH 25 TO 35 INCHES OF SNOW ON THE
GROUND. AT BANGOR, THE SNOW DEPTH PEAKED AT 31 INCHES MID-MONTH,
BUT THERE WAS ONLY A TRACE OF SNOW ON THE GROUND BY THE EVENING OF
THE 31ST.

APRIL WAS A MUCH WARMER MONTH, AND TEMPERATURES AVERAGED 1.5 TO 3.5
DEGREES ABOVE AVERAGE.  IN FACT, IT WAS THE 8TH WARMEST APRIL ON
RECORD AT BOTH CARIBOU AND BANGOR. BY THE END OF THE MONTH, THE
ONLY SNOW THAT REMAINED WAS GENERALLY IN THE MORE PROTECTED
LOCATIONS IN THE HIGHER ELEVATIONS OF FAR NORTHERN MAINE WHERE
THERE WERE LOCALIZED AREAS WITH SEVERAL INCHES OF SNOW ON THE
GROUND. ALTHOUGH SNOWFALL WAS NOT FAR FROM APRIL AVERAGES, THERE
WERE 4 CONSECUTIVE DAYS WITH AN INCH OR MORE OF SNOWFALL AT
CARIBOU FROM THE 19TH THROUGH 22ND, WHICH WAS THE MOST ON RECORD.

MAY 2017 BROUGHT NEAR AVERAGE TEMPERATURES TO NORTHERN AND EASTERN
MAINE AND IN MOST AREAS WELL ABOVE AVERAGE PRECIPITATION.  A TOTAL
OF 6.36 INCHES OF RAIN WAS OBSERVED AT BANGOR MAKING IT THE WETTEST
MAY SINCE 1989, AND THE 5TH ALL-TIME WETTEST MAY ON RECORD.  THERE
WAS AN UNSUALLY HOT DAY ON THE 18TH WHEN MANY INLAND AREAS
OBSERVED HIGHS IN THE 90S. THE HIGH OF 90 DEGREES AT CARIBOU WAS
THE FIRST 90 DEGREE DAY SINCE JULY 2014, AND ONLY THE 7TH TIME
WITH A HIGH IN THE 90S DURING THE MONTH OF MAY.

THE OUTLOOK FOR METEOROLOGICAL SUMMER (JUNE THROUGH AUGUST) FOR
NORTHERN AND EASTERN MAINE FROM THE CLIMATE PREDICTION CENTER HAS
AN INCREASED LIKELIHOOD OF ABOVE AVERAGE TEMPERATURES. THERE ARE
NO STRONG CLIMATE SIGNALS THAT WOULD POINT TOWARD AN UNSUALLY WET
OR DRY SUMMER.

$$



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