Saint John River at Perth-Andover, NB, 16 July 2019 (Dearing)
The next heat wave across Eastern Canada could be the warmest period yet this summer with daytime highs in the low 30’s C and humidex values near 40.
Southern Ontario and Southern Quebec have been blanketed with heat warnings from Environment Canada with hot, humid days and warm nights expected this weekend.
Temperatures in the Maritimes for Saturday and Sunday could reach 30 C but a cold front will bring cooler and drier air by Monday.
A mini heat wave already brought highs of 29 C and 30 C earlier this week in Greater Moncton.
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:
- Greater Moncton, new record 34.0°C, old record 30.6°C from 1983
- 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
Saturday, 06 July:
- Greater Moncton, new record 31.4°C, old record 31.1°C from 1976
(Data courtesy Environment Canada)
Strawberry plant in blossom after rain, NE Moncton, 29 June 2019 (Dearing)
The average monthly temperature for June in Greater Moncton was at least close to normal compared to a damp, cold May.
While daytime highs climbed to 20°C or higher on 20 days, significant heat was scarce and the thermometer didn’t even get close to 30°C.
Rainfall was heavier than normal – a measurable amount was recorded on 21 days – following a trend which began in early spring.
About three-quarters of the precipitation fell during the last ten days of the month.
JUNE 2019 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 21.0°C
Average LOW 8.8°C
AVERAGE 14.9°C (about 0.3 degrees BELOW normal)
Extreme HIGH 26.0°C (19 June)
Extreme LOW 2.8°C (01 June)
RAINFALL 128.9 mm (almost 30 percent ABOVE normal)
(Data courtesy Environment Canada)
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.
The summer solstice officially arrived in New Brunswick at 12:54 pm ADT and it was certainly welcome after a relentlessly cold spring.
Greater Moncton enjoyed 15 hours and 46 minutes of daylight today but unfortunately the sun didn’t make an appearance due to lots of clouds and heavy rain.
The sun is directly over the Tropic of Cancer and it will now begin moving south toward the equator which means days will get shorter – ever so slowly starting tomorrow.
As for summer weather predictions, The Weather Network is suggesting warmer than normal temperatures in July and into August with near normal precipitation.
Environment Canada is calling for near normal temperatures and near to slightly above normal precipitation.
It’s been a cold spring in Greater Moncton and the thermometer didn’t reach 20°C until 25 May – so when will it hit 30°C?
According to Environment Canada, the average date since 2013 has ranged from mid-May to late June but mainly late May.
While June has been warmer to date in Southeast New Brunswick, the long range forecast is calling for cooler conditions.
Will we have to wait until July this year?
Meteorological spring in Southeast New Brunswick turned out to be colder and much wetter than normal compared to the 30-year average.
While March and April both had above normal temperatures, May was colder by a significant 2.4 degrees which brought down the overall seasonal average.
Rainfall was heavy in April and May and while snowfall was below normal for the three month period, the final snow flurries were spotted as late as 21 May.
Irishtown Nature Park, Moncton, 20 May 2019 (Dearing)
May 2019 proved to be the coldest May since 1974 in the Maritimes with temperatures about two or three degrees below normal.
The month started out with some warmth in Greater Moncton but it turned colder near the middle with snow recorded as late as the 21st before a slight recovery at the end.
Overnight lows were cold with six nights either at or below freezing and most minimums were in the low single digits.
Cold, damp and cloudy weather stunted growth and forced farmers to delay planting because fields were saturated.
Only three days reached or exceeded 20°C and the thermometer came nowhere near 30°C at any time of the month.
MAY 2019 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 13.4°C
Average LOW 1.8°C
AVERAGE 7.6°C (about 2.4 degrees BELOW normal)
Extreme HIGH 22.1°C (25 May)
Extreme LOW -2.7°C (02 May)
RAINFALL 105.8 mm (about 10 percent ABOVE normal)
SNOWFALL 0.8 cm (near normal)
(Data courtesy Environment Canada)
Snow in Rexton, 21 May 2019 (S. Hudson/Facebook)
It snowed overnight in Southeast New Brunswick.
About 0.6 cm of wet snow was recorded at the Greater Moncton Airport and even higher accumulations around the region.
In recent history, I can’t recall a snowfall this late in the month of May.
With meteorological summer arriving in 10 days and astronomical summer in barely a month, I’ve concluded that 2019 is the “Year Without Spring”.
The cold, damp weather has impacted farmers who are at least two weeks behind in planting crops due to saturated fields.
Sidewalk patios are eerily empty and winter parkas are still being worn by many.
A frost advisory has been posted for tonight and another one will likely be posted in two days as temperatures drop to near freezing again overnight.
Will the weather improve anytime soon?
A high of 20°C is forecast for Saturday but keep in mind we often hit 30°C before the beginning of June.
Desmoiselles Beach, Hopewell Rocks, 12 May 2019 (Dearing)
The Victoria Day long weekend marks the unofficial start of the summer season in Canada when opening up the cottage or camping are on the agenda.
However, many residents are still wearing heavy, winter jackets and gloves as daytime highs struggle to reach 10°C in Southeast New Brunswick.
The normal maximum in Greater Moncton is about 18°C but the long range forecast shows it won’t be that warm for another six days!
Environment Canada has issued a frost advisory for all of New Brunswick and most of mainland Nova Scotia as the overnight low drops to near freezing.
On the upside, the advisory means the growing season is now officially underway but on the downside, it’s not warm enough to plant anything.