Autumn 2018 in review

Autumn2018
Meteorological autumn spanning the months of September, October and November proved to be cooler and much wetter than normal in Greater Moncton.

While September felt more summer-like, it turned decidedly colder by mid-October and a big drop by mid-November with a low within two degrees of a 30-year record.

Precipitation was heavy with more than 100 mm of rain falling above normal and snow first appeared in late October and again in heavy amounts by late November.

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Weather Network unveils winter forecast

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The Weather Network believes the harsh winter conditions this November in New Brunswick are just a preview of the upcoming season.

Temperatures will likely be below normal this season but periods of mild weather can still be expected.

An active storm track along the Atlantic coast will mean many systems delivering above average precipitation including snow, rain and freezing rain.

A developing El Nino should bring a warmer, drier winter for Western Canada and a colder, wetter winter from the Great Lakes to Atlantic Canada.

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October 2018 – Cool and wet

View from the Sussex Bluffs, Sussex Corner, NB, 14 Oct 2018 (Dearing)

October 2018 proved to be very different from October 2017 in Southeast New Brunswick.

While it was warm and dry last year in Greater Moncton (the second warmest October since 1881), it was the opposite this year – cool and wet.

Temperatures were below normal with only one day reaching 20°C and a hard frost arrived by mid-month.

Only seven days were dry with three major rainfall events and snow fell on three days – briefly settling on the ground twice.

OCTOBER 2018 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)

Average HIGH 10.5°C

Average LOW 2.2°C

AVERAGE 6.4°C (about 1.2 degrees BELOW normal)

Extreme HIGH 19.6°C (04 Oct)

Extreme LOW -6.6°C (27 Oct)

RAINFALL 150 mm (estimate; about 40 percent ABOVE normal)

SNOWFALL 6.2 cm (well ABOVE the normal of 1.2 cm)

(Data courtesy Environment Canada)

Flooding in northern France

A street lamp and a tree are seen on the flooded banks of the River Seine in Paris

Flooding along the River Seine in Paris, France, 27 Jan 2018 (Reuters)

According to France’s meteorological agency, rain in December and January has led to the third wettest period ever in Paris which is why the River Seine and other tributaries in northern France have spilled their banks.

The river is expected to peak on Sunday at 6 metres – normally it measures 2 metres – slightly below the exceptional flooding in 2016 and the disastrous flood of 1910.

Some riverside restaurants have been submerged and roads and parks have been closed due to high water levels.

All boat traffic on the Seine has been halted including tourist cruises, some Metro stations are shuttered and the Louvre has shut down the museum’s lower level as a precaution.

Fierce fall storm hits Eastern Canada

An intense low pressure system which absorbed the remnants of Tropical Storm Philippe unleashed its fury on Ontario, Quebec and the Maritimes after racing through the Northeastern United States.

Environment Canada reports more than 100 mm of rain (a month’s worth) fell in Ottawa turning some streets into rivers in the National Capital (2017 is now its wettest year ever) and neighbouring Gatineau.

Strong winds gusted to 93 km/h at Ile d’Orleans with rainfall amounts of up to 90 mm across Southern Quebec.

Western New Brunswick felt the brunt of this storm in the Maritimes while Greater Moncton recorded 25 mm of rain and a peak wind gust of 69 km/h.

Dry July in Southeast N.B.

Grass turning brown in NE Moncton, 26 July 2017 (Dearing)

Lawns are turning brown and gardens are thirsty in Southeast New Brunswick given the light amount of precipitation recorded so far this month.

Environment Canada says 29.8 mm of rain has fallen this July in Greater Moncton compared to an average of 92.1 mm – just under one-third of normal.

No significant rainfall is expected before the end of the month.

By contrast, parts of neighbouring Nova Scotia have been much wetter than normal with 135 mm to date at Halifax Stanfield Airport.

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)

Where’s the heat?

Low

Low pressure system impacts Atlantic Canada this week, 14 June 2016 (TWN)

Cloudy, cool, drizzle, showers and repeat.

If it was April we wouldn’t think twice but it’s mid-June and heat is currently absent in Southeast New Brunswick.

The daytime high in Greater Moncton was 12.2 C yesterday and the high today will struggle to reach 10 C.

Keep in mind, the average high for this time of year is 22 C and the low is 10 C.

A pesky low pressure system has no place to go thanks to a blocking high over Greenland so forecasters say cloudy, wet conditions will persist this week.

Taste of winter

Salisbury flood

Stranded vehicle in floodwaters covering MacWilliam Road in Salisbury, NB, 23 Nov 2015 (D. Hamer/Facebook)

It was a wet and wintry day in much of the Maritimes today.

After bringing 100 mm to parts of Nova Scotia and 70 mm to Southeast New Brunswick, cold air has filtered in behind the storm system.

Greater Moncton received 2 cm of snow but it only accumulated on grassy areas and not roadways.

More snow than rain fell in Northern New Brunswick with 22 cm reported in Balmoral near Campbellton.

October 2014 – Warm and relatively wet

Fairview Knoll Park, Moncton, NB, 04 Oct 2014 (Dearing)

Fairview Knoll Park, Moncton, NB, 04 Oct 2014 (Dearing)

October 2014 definitely proved to be warmer than normal in Greater Moncton with the monthly temperature about 2.1°C above the 30-year average.

Generally speaking the month was mostly dry except for three rain events on 08 Oct, 17 Oct and an extended wet period thanks to a slow moving Nor’easter from 22-26 October.

The temperature fell below freezing only once at -1.1°C on 21 Oct which produced a light freeze but not a killing frost and not a single snowflake was recorded during the month.

OCTOBER 2014 ALMANAC (at the Greater Moncton International Airport 1981-2010)

Average HIGH 14.4°C

Average LOW 5.0°C

AVERAGE 9.7°C (about 2.1°C ABOVE the 30-year average)

Extreme HIGH 23.7°C (15 Oct)

Extreme LOW -1.1°C (21 Oct)

Rainfall 117.0 mm (slightly ABOVE the 30-year average)

(Data courtesy Environment Canada)