September 2017 – Summer continues

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Maple leaves changing colour in Fairview Knoll Park, Moncton, 04 Sept 2017 (Dearing)

September turned out to be a continuation of summer in Southeast New Brunswick right up until month end.

Daytime highs in Greater Moncton climbed above 25 C on ten days and a monthly maximum of 31.1 C turned out to be the warmest of 2017 set in early fall (26 Sept).

Although hurricanes never directly affected the province, meteorologists say much of the warmth last month came from tropical air pushed northward from these storms.

Rainfall was exactly normal but almost all of the precipitation fell during a single rain event spread over two days (6-7 Sept).

SEPTEMBER 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  22.3 C

Average LOW  9.4 C

AVERAGE  15.8 C (about 2.2 degrees ABOVE normal)

Extreme HIGH  31.1 C (26 Sept, warmest high of 2017)

Extreme LOW  0.6 C (30 Sept)

RAINFALL  93.5 mm (Exactly NORMAL)

(Data courtesy Environment Canada)

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August 2017 – Dry summer persists

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Extremely dry ground and brown grass in NE Moncton, 30 Aug 2017 (Dearing)

The dry summer in Southeast New Brunswick continued in August with a dangerous forest fire hazard and little precipitation to soak the parched ground.

A dry trend which began in late June continued during the month with less than 50 mm of rain falling in Greater Moncton.

Temperatures were above normal with daytime highs consistently in the high 20’s Celsius but a string of single digit overnight lows during the final week brought down the overall monthly average.

AUGUST 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH 25.6 C

Average LOW 11.9 C

AVERAGE 18.9 C (about 0.7 degrees ABOVE normal)

Extreme HIGH 30.6 C (04 Aug)

Extreme LOW 7.2 C (28 Aug)

RAINFALL 46.8 mm (about 40 percent BELOW normal)

(Data courtesy Environment Canada)

Early frost advisory in N.B.

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Frost covers a maple leaf (Twitter)


Environment Canada issued a frost advisory late Sunday afternoon for Greater Moncton and Southeast New Brunswick – almost a month before the average date of the first fall frost.

Clearing skies and light winds with temperatures falling into the lower single digits could have resulted in scattered frost.

However, the frost advisory ended early this morning when the threat was no longer expected.

The low at the Greater Moncton International Airport was 7.2 C which is several degrees away from any threat of frost.

However, the morning low in Edmundston was a chilly 1.1 C.

Unusual mid-summer cool snap

Sunset at Parlee Beach, NB, 18 July 2017 (Dearing)


Late July is typically the warmest period of summer in Greater Moncton but a recent cool down has brought September-like days and a record overnight low. 

On 23 July, the temperature fell to 6.9 C at the Greater Moncton International Airport which broke a record low of 7.2 C from 1962. 

A frost advisory was posted in northwest New Brunswick with a chilly low of 2.4 C in Edmundston. 

The short term forecast calls for more seasonal highs in the mid-20’s C and lows near 13 C. 

June 2017 – Warm and unsettled

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Ominous clouds near the Nova Scotia-New Brunswick border, 03 June 2017 (Dearing)

Thunderstorm activity was common throughout Southeast New Brunswick in June and all but ten days had at least a trace of rainfall.

But precipitation amounts were generally light in Greater Moncton except for two major rain events – 36.6 mm fell on 09 June along with a peak wind gust of 102 km/h and 21.2 mm fell on 24 June.

Temperatures were cool during the first week of the month with an overnight low dropping to the freezing point although frost was generally avoided thanks to cloudy skies.

Summer-like conditions arrived by mid-month and many daytime highs climbed well into the 20’s C and reached 30 C or higher three times.

JUNE 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  22.4 C

Average LOW  9.9 C

AVERAGE 16.2 C (about 1.0 degree ABOVE normal)

Extreme HIGH  30.8 C (11 June)

Extreme LOW  0.0 C (06 June)

RAINFALL  77.8 mm (about 20 percent BELOW normal)

(Data courtesy Environment Canada)

May 2017 – Wet and cloudy

Trailing arbutus or Mayflower growing in Irishtown Nature Park, 20 May 2017 (Dearing)


May in Southeast New Brunswick certainly lived up to its unpredictable nature as a transitional month between winter and summer.

Overall temperatures were above normal in Greater Moncton but oddly enough some of the coolest days were in the last third of the month.

Many days were cloudy and rainfall was heavy with only seven days without at least a trace of precipitation.

By the final week, trees were in full leaf or blossom and perennials were in full bloom.

MAY 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH 16.1 C

Average LOW  5.1 C

AVERAGE 10.8 C (about 0.8 degrees ABOVE normal)

Extreme HIGH 30.5 C (18 May)

Extreme LOW -0.4 C (13 May)

RAINFALL 163.5 mm (about 40 percent ABOVE normal)

(Data courtesy Environment Canada)

Record highs in the Maritimes

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Jones Lake, west end Moncton, 18 May 2017 (Dearing)

Summer-like air enveloped the Maritime Provinces with new record high temperatures set in all three provinces yesterday.

Environment Canada says more than a dozen communities in New Brunswick hit new maximums for the date including St. Stephen at 34.0 C (hot spot in Canada), Fredericton at 33.0 C and both Woodstock and Edmundston at 32.0 C.

While the thermometer reached a record-breaking 30.5 C at the Greater Moncton International Airport, the overall 18 May record for Moncton is 31.7 C from 1918.

In Nova Scotia, new records were set in Greenwood and Kejimkujik Park at 32.0 C while Summerside, Prince Edward Island warmed up to 26.3 C.

April 2017 – Spring sputters

Budding trees in Fairview Knoll Park, Moncton, 30 April 2017 (Dearing)

Spring seldom arrives on time in New Brunswick and this year is no exception even though April was actually warmer than normal in Greater Moncton.

The month can be broken into four segments – cold in the beginning, then warm, turning cold again and finally warm again near the end.

A consistent snow cover began on 27 November and disappeared briefly in late January before finally melting for the season by 10 April.

Precipitation overall was below average with much less snow than normal.

APRIL 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH 10.5 C

Average LOW -0.8 C

AVERAGE 4.9 C (about 1.4 degrees ABOVE normal)

Extreme HIGH 21.8 C (27 April)

Extreme LOW -7.7 C (01, 19 April)

RAINFALL 42.5 mm (about 30 percent BELOW normal)

SNOWFALL 6.8 cm (about 75 percent BELOW normal)

(Data courtesy Environment Canada)

March 2017 – Cold and snowy

Walking trail in Irishtown Nature Park, Moncton, 18 March 2017 (Dearing)

Winter just wouldn’t let go of its grip on Southeast New Brunswick during March. 

Overnight lows were extremely cold especially during the first half of the month. 

Daytime highs were often very chilly and barely climbed above freezing even during the last week. 

Oddly enough, the maximum temperature in February was actually warmer than all of March. 

Precipitation was below normal overall but snow did fall on 22 of 31 days. 

MARCH 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH 0.3 C

Average LOW -9.0 C
AVERAGE -4.4 C (about 1.5 degrees BELOW normal)

Extreme HIGH 9.7 C (01 March)

Extreme LOW -20.1 C (11 March)

RAINFALL 17.6 mm (about 65 percent BELOW normal)

SNOWFALL 53.1 cm (about 20 percent BELOW normal)

(courtesy Environment Canada)

February 2017 – Lots of snow then mild

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Spillway at Irishtown Nature Park, Moncton, 26 Feb 2017 (Dearing)

Three major winter storms including a blizzard were part of a very active weather pattern in Greater Moncton during February.

While snowfall was below normal in January, it made up for it in February with more than double the average amount recorded.

Temperatures were above normal but oddly enough it was still warmer in January which is typically the coldest month.

The final week felt like spring with mild temperatures climbing above 10 C which was enough to melt most of the snow which had fallen during the previous three weeks.

FEBRUARY 2017 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  -1.2 C

Average LOW  -10.9 C

AVERAGE  -6.2 C (about 1.4 degrees ABOVE normal)

Extreme HIGH  11.5 C (24 February)

Extreme LOW  -22.6 C (12 February)

RAINFALL  19.7 mm (slightly BELOW normal)

SNOWFALL  124.1 cm (about 100 percent ABOVE normal)

(Data courtesy Environment Canada)