Data courtesy Environment Canada
After taking a look at the past seven growing seasons in Greater Moncton including 2019, the last freezing temperature in Greater Moncton in the spring has been recorded from a month-long period from early May to early June.
Meantime in the fall, the first freezing temperature has been recorded from a month-long period from mid-September to mid-October.
The total number of days above freezing during the growing season has ranged from as little as 111 days to as many as 155 days – a difference of more than one month.
Fallen leaves on a trail in Irishtown Nature Park, 23 Sept 2019 (Dearing)
Hurricane Dorian defined September for Southeast New Brunswick, Prince Edward Island and Nova Scotia.
Although downgraded before making landfall near Halifax, Dorian was still a very destructive storm.
Powerful winds toppled century-old trees onto power lines, a month’s worth of rain drenched the region in hours and a vicious storm surge tossed boats around like toys.
If it hadn’t been for Dorian, the month would have been quite dry in Greater Moncton.
September also lacked heat with slightly below normal temperatures thanks to chilly nights and cool daytime highs which often struggled to reach 20°C.
SEPTEMBER 2019 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 18.9°C
Average LOW 7.3°C
AVERAGE 13.1°C (about 0.5 degrees BELOW normal)
Extreme HIGH 26.0°C (22 Sept)
Extreme LOW -0.4°C (19 Sept)
RAINFALL 187.5 mm (more than DOUBLE the normal amount)
(Data courtesy Environment Canada)
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:
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
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)
Wildfires create smoky sky over downtown Calgary, AB, 14 Aug 2018 (Dearing)
Here is the annual list from Environment Canada:
Record wildfires and smoky summer skies in the West
Summer heat wave from East to West
Tough growing season in the Prairies
Powerful May winds impact Ontario and Quebec
September tornadoes touch down in Ottawa-Gatineau
Spring flooding in southern British Columbia
Historic spring flooding along the St. John River Valley
August deluge in Toronto
Record cold start to a long winter nationwide
Cold and stormy April for the East
autumn, cold, dry, fire, flooding, heat, rain, smoke, snow, spring, summer, tornado, warm, wind, winter |
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.
Black-eyed Susans growing in Upper Hammonds Plains, NS, 21 Sept 2018 (Dearing)
Warm, summer weather picked up in September where it left off in August in Southeast New Brunswick.
But the passage of a cold front marked a drastic temperature drop on the 18th and suddenly it felt like fall in Greater Moncton.
The thermometer continued to plunge and sank to -1.9°C on the 25th with light, scattered frost although most vegetation was spared severe damage.
Precipitation was actually above normal although heavy amounts fell in a handful of rainfalls.
SEPTEMBER 2018 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 20.9°C
Average LOW 7.9°C
AVERAGE 14.4°C (about 0.8 degrees ABOVE normal)
Extreme HIGH 28.9°C (06 Sept)
Extreme LOW -1.9°C (25 Sept)
RAINFALL 100.5 mm (about 10 percent ABOVE normal)
(Data courtesy Environment Canada)
A clear night under a brilliant harvest moon lowered the temperature to -1.9°C in Greater Moncton this morning with some scattered frost.
Most sensitive vegetation survived as the thermometer fell below zero for less than six hours.
Many weather stations across New Brunswick had readings near or a few degrees below freezing.
On average, the first fall frost date in Moncton is 02 October with an growing season of 131 days.
However, a record breaking low of -3.2°C on 04 June brought a late frost (about two weeks later than usual) which proved devastating for farmers and gardeners.
So despite enjoying a long and warm summer, the frost-free season lasted 112 days which is about 19 days shorter than usual.
Hints of fall colours in west end Moncton, 20 Sept 2018 (Dearing)
The same storm system which brought severe weather to Ontario and Quebec – including tornadoes – crossed through New Brunswick overnight.
Strong low pressure caused gusty winds up to 72 km/h at the Greater Moncton International Airport which turned out to be the windiest day since 02 June.
A wind gust of 85 km/h was reported in Charlo.
NB Power said almost 10,000 customers lost power at the peak of the storm thanks to trees and branches falling on utility lines.
Incidentally, fall officially arrives later tonight with the autumnal equinox at 10:54 pm ADT.
The skyline of Moncton, NB, 16 Sept 2018 (Dearing)
An abrupt change in temperature thanks to a passing cold front turned summer quickly into fall in Greater Moncton this week.
On Tuesday, Environment Canada reports a temperature of 22°C at 11am which plummeted to 16°C by 1pm and the wind direction changed from the southeast to the northwest.
The long, hot summer in New Brunswick was suddenly over.
The daytime high on Wednesday was 13.6°C which was the coolest day since 25 June.
Forecasters are calling for near or slightly below seasonal temperatures until the end of the month (Normal high 18°C, normal low 7°C).
Giraffe in the snow, Sneeuberg, Eastern Cape, South Africa, 08 Sept 2018 (Facebook)
An intense cold front has gripped South Africa bringing snowfall to southwestern parts of the country.
Temperatures fell below freezing in the Cape Provinces.
More than 10 cm snow forced the closure of roads through some mountain passes in Eastern Cape when trucks got stranded.
Meantime, as much as 100 mm rain drenched the southern coast.
Keep in mind it is still winter in the Southern Hemisphere with spring officially arriving on 23 September.