Halifax just had a colder-than-normal month for the first time in more than 4 years - Action News
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Nova ScotiaWeather

Halifax just had a colder-than-normal month for the first time in more than 4 years

Its the first time that monthly temperatures were more than one degree below normal in the Halifax area since May 2019.

November temperatures were at least 1 degree below normal in the Halifax area

Halifax had colder-than-normal month for the first time in more than 4 years

11 months ago
Duration 2:13
Meteorologist Ryan Snoddon says until November 2023, the HRM area had experienced 53 consecutive months with temperatures that were either within degree of normal or above normal.

An incredible run has just come to an end in the Halifax area.

For the first time since May 2019, a monthly temperature has averaged more than one degree below normal in the Halifax area.

Up to November 2023, the metro region had experienced 53 consecutive months, or four-and-half years, with temperatures that were either within degree of normal, or above normal.

Normaltemperaturesarebased on the30-year average recorded between1991-2020.

The 53-month streak occurred at both the Halifax Stanfield International Airportand Halifax-Shearwater weather stations and, over that time, temperatures averaged about onedegree above normal.

And then along came November.

A man stands in front of a map of Nova Scotia and points at it.
Meteorologist Ryan Snoddon shows average daily temperatures across Nova Scotia in November compared to average temperatures for the month from 1991 to 2020. (CBC)

The month of November finished 1.7 degrees below normal at the airport and 1.2 degrees below normal at Shearwater.

The month of November was also colder than normal elsewhere across the province, which has certainly been the exception to the rule over the past fouryears.

Since May 2019, Greenwood has experienced just six months below normal. Closer to the coastline, Sydney had just fourmonths and Yarmouth only two months below average.

A chart showing Halifax temperature averages over a four-year period.
(CBC)

The remainder of the months have been either near or above average.

In addition to the rising temperatures around the globe, recent studies have shown that due to climate change, ocean temperatures surrounding the Maritimes are warming faster than 97.5 per centof the other world oceans. Slower to cool off, warmer ocean water acts like a blanket, keeping temperatures milder, especially at night and in the fall and winter months.

A map showing the world's fastest-warming oceans.
Gulf of Maine, left, and the worlds oceans, right, recorded warmer temperatures from1982 through to 2021. Yellow areas indicate regions that are warming faster than 97.5% of the worlds oceans. (Credit: Gulf of Maine Research Institute)

A big thank you and courtesy to Jonathan Buffett from the Cape Breton Mesonet for sharing the recently updated 1991-2020 climate normals for the Halifax region.