From cold to hot

Leaves are finally bursting out, Irishtown Nature Park, 24 May 2020 (Dearing)

Numerous record lows were set across the Maritimes early Sunday morning as temperatures plummeted under clear skies and light winds.

But the cold will be replaced by heat as the jet stream surges north over Eastern Canada this week.

Environment Canada has issued a special weather statement for New Brunswick with unseasonably warm weather expected for late May.

Records will be challenged in Greater Moncton as daytime highs soar to 30°C and humidex values reach the mid-30’s.

New record lows set on 24 May:

  • Woodstock -4.7°C
  • Edmundston -3.0°C
  • Grand Manan -2.8°C
  • Bouctouche -1.9°C
  • Saint John -1.6°C
  • Kejimkujik NP -1.6°C
  • Summerside -1.4°C

(Data courtesy Environment Canada)

Warm front brings record highs

Radar image at 9pm ADT, 10 March 2020 (Microsoft)

A slow moving warm front has brought precipitation and varying temperatures to the Maritimes.

About 15 cm of snow was expected in the north, while freezing rain and ice pellets fell in central areas and rain in the south.

Temperatures also ranged from well below freezing in northwestern New Brunswick to as high as 15°C in southwestern Nova Scotia.

Meantime, the thermometer has been rising in Greater Moncton over the past 24 hours with snow, ice pellets, freezing rain and now rain.

Record highs from 09 March (courtesy Environment Canada):

  • Kejumkujik National Park, 14.9°C beats old record 14.3°C from 2002.
  • Grand Manan Island, 10.4°C beats old record 9.9°C from 2012.

Scattered frost!

Geranium with light frost damage in NE Moncton, 19 Sept 2019 (Dearing)

It was a cold morning in the Maritimes and frost advisories were posted for all three provinces.

Scattered frost was recorded in many areas including Greater Moncton where the thermometer fell to -0.4°C at the airport which is close to the 2008 record low of -1.2°C.

However, a minimum of -4.4°C was set in the area in 1945.

This was a light frost and much earlier than the average date of 04 October.

New record lows for 19 September:

Grand Manan
New record  -2.1°C
Old record -1.6°C set in 2008
Records in this area have been kept since 1883

Saint John Airport
New record -0.7°C
Old record -0.5°C set in 2009
Records in this area have been kept since 1871

Port Hawkesbury, NS
New record 0.3°C
Old record 2.0°C set in 1994
Records in this area have been kept since 1875

Summerside, PEI
New record 0.6°C
Old record 2.1°C set in 2014
Records in this area have been kept since 1898

(Data courtesy Environment Canada)

Thunderstorms cool off Eastern Canada

Thunderstorms rolling across Southern Ontario and Southern Quebec this weekend brought an end to oppressive heat and humidity.

Toronto residents were trying to keep cool Saturday when the mercury soared to 33.0°C with a stifling humidex of 44 and Montreal reported similar conditions.

In the Maritimes, even typically cooler coastal areas were warm with new record highs set in Saint John and Grand Manan.

The temperature in Greater Moncton peaked at 32.4°C which fell short of the record of 33.5°C from 1991.

A brief, violent thunderstorm hit Halifax on Sunday afternoon with flash flooding and strong winds knocking out power to more than 44,000 Nova Scotians.

Brief heat wave ends

Aboiteau Beach, Cap-Pele, NB, 04 July 2019 (Dearing)

In less than two hours, the temperature in Greater Moncton dropped from 31.1°C to 24.0°C late this afternoon – a difference of seven degrees.

A cold front moved through New Brunswick with thunderstorms marking an abrupt end to the summer’s first brief heat wave.

Environment Canada even issued a tornado warning for the Grand Lake area after a possible twister developed south of Boiestown.

The warning was lifted after 30 minutes and no damage or injuries were reported.

Record highs have been broken in a number of communities across the Maritimes.

Friday, 05 July:

  • Kouchibouguac NP, new record 31.1°C, old record 33.9°C from 1939
  • Grand Manan, new record 31.7°C, old record 30.0°C from 1999
  • Halifax Stanfield Airport, 32.7°C, old record 31.4°C from 2013

Greater Moncton was within a hair of breaking a record Saturday and Sunday it was the warmest on that date since 2013.

  • 05 July, high 34.0°C, record 34.2°C from 2018
  • 06 July, high 31.4°C, record 35.0°C from 1911

(Data courtesy Environment Canada)

Chilly nights!

Last Zero
The last couple of nights have been chilly across New Brunswick with overnight lows in the low single digits.

While Greater Moncton fell to 5.5°C which was a few degrees away from the record, the same minimum in Bouctouche was cold enough to set a new low.

Edmundston dipped to a nippy 1.1°C which tied its record as did Grand Manan when it dropped to 3.8°C.

Over the last six years in Greater Moncton, the chart above shows temperatures have not fallen to the freezing point or lower after early June.

Deep snow cover across N.B.

NB map
This has been a very snowy winter across northern New Brunswick with Edmundston and Bas-Caraquet recording 114 cm of snow on the ground as of today (06 March).

Some unofficial reports have indicated a snow depth of more than 160 cm in some mountainous areas.

Southern New Brunswick also has plenty of snow but often it has been mixed with rain, freezing rain or ice pellets which have lowered accumulations.

Greater Moncton now sits at 53 cm (the most so far this season) and snowbanks are getting high enough to cause visibility issues at some intersections.

Plenty of snow near Caraquet, NB (Village Historique Acadian/IG)

1-2-3 New Year Punch

Snow falling in west end Moncton, 09 Jan 2019 (Dearing)

For the third time since the start of 2019, Southeast New Brunswick was hit with snow.

Another low pressure system initially brought snow with 21 cm recorded in Greater Moncton following briefly by ice pellets and then 5 mm of rain as the temperature climbed above freezing.

Higher amounts of snow fell in central and northern New Brunswick while more rain fell over mainland Nova Scotia with localized flooding in the Halifax region.

Environment Canada expects calmer but colder conditions over the next few days.

UPDATE – Storm summary for New Brunswick:

Snowfall (cm)

  • Miramichi  up to 55
  • Caraquet  up to 44
  • Bathurst  28
  • Kouchibouguac  28
  • Shediac  27
  • Alma  26
  • Greater Moncton  21
  • Fredericton  15
  • Saint John  5

Rainfall  (mm)

  • Grand Manan  30
  • Saint John  25
  • Alma  19
  • St. Stephen  13
  • Fredericton  5
  • Greater Moncton  5

Bitter cold across N.B.

cold jan 3

It doesn’t get that much colder than this in New Brunswick – thankfully! – and this is certainly the coldest weather so far this winter.

The thermometer fell to a bone-chilling -21 C in Greater Moncton this morning with a wind chill of -28.

The cold spot in the province was Edmundston with a low of -31 C which makes a temperature of -4.4 C in Grand Manan balmy by comparison.

Miscou Island set a new record low of -22.9 C according to final figures from Environment Canada beating the old record of -22.2 C from 1968.

Winter arrives with a deluge

The historic Algonquin Resort after a rainstorm, St. Andrews, NB, 22 Dec 2018 (Dearing)

Although it has felt like winter for weeks now, the solstice officially arrived in New Brunswick at 6:23pm AST Friday.

Oddly enough the weather now feels more like spring with a high of 10.1 C on Friday and 12.8 C today in Greater Moncton thanks to southerly winds and heavy rain from an intense low pressure system.

But the warmth will be short-lived as winds change direction to northwesterly behind the system and temperatures will fall below freezing on Sunday.

Rainfall amounts as of 22 December at 12pm AST:

  • Mechanic Settlement  92 mm
  • St. Andrews  79 mm
  • Grand Manan  73 mm
  • Alma  60 mm
  • Fredericton  51 mm
  • Saint John Airport  42 mm
  • Miramichi  31 cm
  • Greater Moncton  about 20 mm