The days are getting shorter and the leaves are beginning to change colour.
Fall is here in New Brunswick with the official arrival of the autumnal equinox at 10:30 a.m. ADT.
The sun is directly above the equator and day and night are roughly equal.
The sun moves southward to the Tropic of Capricorn until the winter solstice on 21 December – the shortest day of the year.
The sun then starts moving northward again with the days gradually get longer.
Environment Canada and the Weather Network are both forecasting above normal temperatures this fall for Greater Moncton.
The Weather Network believes New Brunswick will see above normal temperatures this fall as it unveils its seasonal forecast.
While quick shots of cold are likely, TWN meteorologists think the arrival of consistent winter weather will be delayed.
Tropical storm activity is well above average this year and heavy rounds of rain are possible as systems affect the Maritimes.
The precipitation is desperately needed since much of the region is suffering from severe to extreme drought conditions.
For the first time since mid-July, the daytime high in Greater Moncton didn’t reach 20°C.
On Friday, the daily maximum was 15.5°C which is also about five degrees below normal for mid-September.
The fall-like weather arrived after a cold front moved across New Brunswick replacing warm, humid air with cooler, drier conditions.
This morning’s chilly low of 4.0°C was the coldest since 10 June when the temperature fell slightly below freezing – enough for a light frost.
While some parts of the province had scattered frost, my neighbourhood and my tomatoes were spared.
Environment Canada has issued a frost advisory for New Brunswick except along the Fundy coast and Grand Manan Island.
Temperatures could drop to near the freezing point in low lying areas thanks to a clear sky, light winds and a cool air mass.
This is the last day of meteorological summer, but the average first fall frost date in Greater Moncton is 04 October for a 134 day frost-free season.
The probability of frost before mid-September is only 10 percent which increases to 50 percent by month’s end.
UPDATE – No frost in Greater Moncton with low of 5.8°C but possible patchy frost up north with low of 2.0°C in Edmundston.
The western half of North America is baking with the thermometer climbing above 50°C in California’s Death Valley.
The World Meteorological Organization is verifying Sunday’s unofficial high of 54.4°C (134°F) and it could become the world’s hottest temperature recorded since 1931.
Severe thunderstorms have produced lightning and strong winds in the western U.S. – increasing the threat of wildfires.
Extreme heat is also impacting interior British Columbia where the thermometer peaked at 41.2°C in Lytton while several locations in Alberta and Saskatchewan climbed to 38°C.
Irishtown Nature Park Reservoir, NB, 12 July 2020 (Dearing)
After five days of below normal temperatures in Greater Moncton, the thermometer is rebounding and a heat warning has been issued for much of New Brunswick.
Over the next few days, Environment Canada says daytime highs near 30°C can be expected which will push humidex values into the upper 30s.
The high today was 29.3°C with a humidex of 37 which is slightly above the normal maximum of 26°C for mid-July.
Month-to-date values are close to average but temperatures have varied wildly from hot (three days above 30°C) to chilly (three nights below 10°C).
A cold front moved across New Brunswick on Thursday bringing thunderstorms with much needed rain and ushering out the heat and high humidity.
The temperature climbed to 30°C in Greater Moncton during the noon hour but dropped to 22°C by 2pm and 17°C by 6pm.
A severe thunderstorm watch was posted for a couple hours and 16 mm of rain fell which was good news considering the current drought conditions.
The last decent rainfall was on 12 June when 21 mm fell.
Environment Canada is forecasting possible showers or thundershowers this weekend.
The first half of June was cold and dry similar to May and April.
But by mid-month, after struggling to reach the 20s, temperatures suddenly began climbing into the 30s.
On 19 June, Greater Moncton hit a sizzling 35.6°C (humidex 40) which is the hottest June temperature in recorded history.
The thermometer climbed above 30°C six times and the average is only once.
Before the heat arrived, a light frost occurred on 10 June which damaged some sensitive crops like strawberries.
Farmers and gardeners also lamented a lack of rain with only one-third of the normal monthly amount recorded.
JUNE 2020 ALMANAC (at Greater Moncton Int’l Airport, 1981-2010)
Average HIGH 23.8°C
Average LOW 10.0°C
AVERAGE 16.9°C (about 1.7 degrees ABOVE normal)
Extreme HIGH 35.6°C (19 June, new monthly record)
Extreme LOW -0.6°C (10 June)
RAINFALL 34.3 mm (about 65 percent BELOW normal)
(Data courtesy Environment Canada)
Over the past few days, the landscape across Southeast New Brunswick has been greening up and the buds are bursting on the trees.
Recent warm weather and some precipitation – including wet snow today – have finally made it look more like spring.
However, the long range forecast doesn’t have much heat with below average temperatures likely in the next 10 days.