Waves pound the shore at Peggy’s Cove, N.S. on Jan. 5, 2018. (Andrew Vaughan/The Canadian Press)

Insurers say Canadian weather getting hotter, wetter and weirder

Average number of days with heavy rain or snow across Canada has been outside norm since spring 2013

If it seems as if the weather’s getting weirder, you’re not wrong.

An index of extreme weather in Canada compiled by the insurance industry backs that up.

“Yes, we see definite trends that can’t be explained by normal variability,” said Caterina Lindman of the Canadian Institute of Actuaries.

The institute compiles what it calls the Actuaries Climate Index, a joint effort by insurance organizations across North America. It recently released its latest quarterly update — up to spring 2017.

The index begins with a 30-year average taken from 1961 to 1990 of everyday weather conditions such as temperature, precipitation, wind speed and sea level. Thresholds are set for each of those based on the top 10 per cent of readings.

For an average month, for example, about three days would be in that 10 per cent.

READ MORE: Canadian weather in 2017 saw ‘too much’ of everything

READ MORE: If 2017 weather was a downer, you ain’t seen nothing yet

Using data provided by the U.S. National Oceanic and Atmospheric Administration — one of the top American government science organizations — the index then counts how many days actually exceed that threshold. The index plots the results for every three-month period since 2016.

The method reveals a slow, gradual increase in extreme weather.

The overall Canadian index indicates that during the entire three decades between 1961 and 1990, extreme weather fell outside the range of normal variability only five times. In the last 10 years, however, that happened 12 times.

Temperatures have been climbing.

Across Canada, hot days have exceeded the normal number every quarter since the winter of 2015. The number of cold days hasn’t exceeded normal for nine years.

It’s getting wetter, too. Across Canada, the average number of days with heavy rain or snow has been outside the norm since spring 2013. In Ontario and Quebec, it’s been since winter 2008.

It’s harder to draw conclusions about wind for Canada as a whole. Likewise for sea level — unless you live in the Maritimes, where sea level has been higher than the normal range for the last 12 years.

The findings correspond with data from Environment Canada, which suggests average summer temperatures have climbed one degree since 1970 and precipitation has increased about five per cent.

Actuaries use the information in their calculation of risk as they insure lives and property, said Lindman. But they also do it to contribute to public debate.

“There’s a lot of political angst around the issue of global warming and we’re trying to be neutral sources,” she said. ”We’re just adding our voice.

“We’re in it for the long haul, so we are concerned for the sustainability of our planet.”

Bob Weber, The Canadian Press

Just Posted

Eke Me-Xi Learning Centre’s 2018-2019 graduating class

The Eke Me-Xi Learning Centre is located on the Tsulquate reserve in the North Island.

Skin deep: A look inside the ink behind Beacon Tattoo

Patrick Berube, owner of Beacon Tattoo, spends most of his Tuesdays at… Continue reading

Second recreational cannabis shop opens its doors in Port Hardy

Pacificanna owner Darren Saunders was excited to finally see his family-run business open up shop.

Bradshaw’s Photo Highlight: A lone crow landing beside an eagle

“I saw an eagle just sitting there, but I had a feeling it wouldn’t be there long as I got closer”

Port McNeill council’s June 17 meeting features ‘packed agenda’

A draft policy on wildfire response for the Port McNeill Volunteer Fire Department was presented.

VIDEO: Killer whale steals fisherman’s catch off North Coast

Fishing duel results in eager orca snagging salmon in Prince Rupert

More than naming a week is needed to tackle problem of second-hand smoke in B.C.

Langley mom who campaigned for tougher anti-smoking laws applauds gesture but wants more

Child killed after being hit in driveway on Vancouver Island

The driver of the vehicle remained at the crash scene and is fully cooperating

Eating sandwiches, putting on makeup behind the wheel could land you a fine

RCMP say if you cause an accident while eating you could be penalized

Delta cat severely injured in animal trap was likely stuck for days, owner says

Blu, a three-year-old house cat, suffered severe damage to his hind leg after being stuck in trap for days

Vancouver Island woman assaulted after confronting thief

RCMP warn residents to call for police assistance

Island Health issues safer drug-use tips ahead of music festival season

Health authority aims to reduce overdose risks at festivals

40 cats surrendered in apparent hoarding at B.C. home

Officers found the cats living among piles of garbage and feces, suffering from fleas

Campers hailed heroes in rock face rescue at Vancouver Island provincial park

The campers quickly noticed the man in distress and jumped into the river to swim across.

Most Read