Meteorological Summer in Greater Moncton

Maple tree turning colour in Fairview Knoll Park, Moncton, NB, 04 Sept 2017 (Dearing)


If you were looking for great summer weather in the province, Environment Canada says Greater Moncton and Southeast New Brunswick was the place to find it this year. 

The average temperature for meteorological summer – June, July and August – was 18.1 C which is 0.7 degrees above normal. 

The weather office says humidity was often low, overnight lows were comfortable but 8 days hit 30 C or higher compared to a typical 4 to 5. 

The downside was a lack of precipitation with 155 mm of rain recorded which is 40 percent less than the summer average of 268 mm. 

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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)

July 2017 – Warm and dry

Upper Salmon River, Alma, NB, 30 July 2017 (Dearing)

As the month of July progressed in Southeast New Brunswick, lawns turned brown and forests became extremely dry as temperatures soared and little rain fell.

Greater Moncton only received one-third of its normal monthly rainfall and 15 days had no precipitation at all.

The heat was steady throughout July with 20 days reaching 25 C or higher and four days climbing to 30 C or more.

A brief cool down near month end lowered daytime highs to the low 20s Celsius and brought a chilly overnight low of 6.9 C.

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

Average HIGH 26.0 C

Average LOW 12.3 C

AVERAGE 19.2 C (about 0.4 degrees ABOVE normal)

Extreme HIGH 30.5 C (31 July)

Extreme LOW 6.9 C (23 July)

RAINFALL 30.0 mm (about 67 percent BELOW normal)

(Data courtesy Environment Canada)

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. 

Decent first half of July

An ominous afternoon sky over Greater Moncton, 17 July 2017 (Dearing)


For whatever reason, summer seems to go by faster than the other seasons and here we are already at the midway point of July. 

After 16 days, Greater Moncton has been having a decent month with an average temperature of 19.3 C which is 0.5 degrees above normal. 

Daytime highs have been warm but not hot with a peak of 29.4 C on 16 July while overnight lows have been mild except for a chilly low of 8.9 C on  05 July. 

The only concern is a lack of rainfall. 

The tally is 19.8 mm so far – less than a quarter of the monthly total – but keep in mind we are entering what is traditionally the driest period of the year in Southeast New Brunswick. 

(Stats courtesy Environment Canada)

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)

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)

Nor’easter replacing frigid air

Screenshot (76)_LIThe last week of winter in New Brunswick has felt more like January than March but that frigid air is about to be replaced by a powerful Nor’easter forming off the U.S. Eastern Seaboard from two low pressure systems.

Overnight temperatures plunged to -20.1 C in Greater Moncton on the weekend which is close to a record low and daytime highs remained well below freezing with dangerous wind chills as low as -35 at times.

Environment Canada says heavy snow and winds creating blowing snow will move into southwestern New Brunswick Tuesday afternoon and spread to the remainder of the province in the evening.

Snow will likely change to rain by early Wednesday with most areas of the province expected to receive up to 30 cm of snow.

Before the storm reaches the Maritimes, forecasters say the Nor’easter could drop between 30 and 50 cm of snow in the U.S. Northeast from Washington DC to New York to Boston.

January 2017 – Milder, less snowy but icy

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Ice buildup tilts power pole in Salisbury, NB, 25 Jan 2017 (Facebook/Salisbury Happenings)

The defining weather event of January 2017 in New Brunswick was the devastating ice storm which brought down power lines and poles leaving more than 133,000 electricity customers in the dark for days.

Freezing rain and ice pellets began falling in Greater Moncton and Southeast New Brunswick on 25 January and the storm eventually moved northeast to Miramichi and the Acadian Peninsula.

Emergency shelters were set up in churches and community centres and the military was called in to help after some households were still without power a week later.

While overnight lows became frigid during the early and middle parts of the month, daytime highs were generally much milder than usual.

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

Average HIGH  -1.2 C

Average LOW  -9.5 C

AVERAGE  -5.3 C (about 3.6 degrees ABOVE normal)

Extreme HIGH  8.5 C (12 January)

Extreme LOW  -23.2 C (10 January)

RAINFALL  65.7 mm (about 100 percent ABOVE normal)

SNOWFALL  48.9 cm (about 60 percent BELOW normal)

(Data courtesy Environment Canada)

December 2016 -Weather rollercoaster

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A cold late afternoon in downtown Moncton, 16 Dec 2016 (Facebook)

So many ups and downs occurred during December in Southeast New Brunswick, one might say we were riding a weather rollercoaster.

Early on 17 December in Greater Moncton, the thermometer fell to a monthly (and almost record) low of -22.1 C which then rose to a monthly high of 10.6 C only 36 hours later before eventually dropping again to -18.6 by late on 19 December.

Although many nights were extremely cold (eight below -15 C), daytime highs were often slightly above or below freezing which overall led to a slightly below average monthly temperature.

Most snow fell during the first half of the month (three snowfalls were 12 cm or higher) and although rainfall was below normal, overall precipitation was about average.

DECEMBER 2016 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH  -0.8 C

Average LOW  -9.5 C

AVERAGE  -5.1 C (about 0.3 degrees BELOW normal)

Extreme HIGH  10.6 C (18 December)

Extreme LOW  -22.1 C (17 December)

RAINFALL  37.5 mm (about 30 percent BELOW normal)

SNOWFALL  85.2 cm (about 25 percent ABOVE normal)

(Data courtesy Environment Canada)