Frost covers a maple leaf (Twitter)
When the temperature dropped to -0.3 C early this morning, frost could be found in Greater Moncton.
The coldest low in New Brunswick was -5.9 C at Edmundston!
Thanks to cool, dry air with no cloud cover, Environment Canada has issued another frost advisory for tonight.
But keep in mind it’s not that unusual based on the 30-year average (1981-2010).
The average last spring frost date is 23 May in Greater Moncton and the first fall frost is 2 October for a growing season of 131 days.
The parade of hurricanes in the Atlantic continues with Maria making landfall late tonight over the eastern Caribbean island nation of Dominica as a powerful category 5 storm packing sustained winds of 260 km/h.
The U.S. National Hurricane Center is outlying a path for Maria which is eerily similar to the recent Hurricane Irma with the U.S and British Virgin Islands and Puerto Rico expected to be impacted on Wednesday.
Maria will be accompanied by a dangerous storm surge and between 300-500 mm (12-20 inches) of rain to some of the islands causing life-threatening flash floods and mudslides.
Meantime, Hurricane Jose is still churning northward as a category 1 storm with heavy surf and rip currents along the U.S East Coast from North Carolina to Massachusetts.
Canadian forecasters say the remnants of Jose have already brought high humidity to the Maritimes and will give Nova Scotia persistent moisture and cloud cover as well as rough surf along the Atlantic coast.
A break in clouds over the Nova Scotia-New Brunswick border, 03 June 2017 (Dearing)
The last couple of days had near record lows in Greater Moncton with temperatures dropping to near the freezing point.
A low of 1.0 C at the airport on Monday was close to the 1947 record of 0.6 C while a low of 0.0 C on Tuesday tied the minimum from 1995.
Fortunately cloud cover prevented frost in most of New Brunswick but another risk is possible by early Wednesday.
Folklore suggests frost can be expected until the full moon in June which is this Friday the ninth.