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

Lacombe, Red Deer and Ponoka counties launch agricultural plastics recycling program

The three counties signed an agreement with Merlin Plastics

Bashaw council declines penalty forgiveness request from Bashaw Motel owners

The motel was destroyed in the 2016 fire; owners owe $46,000 in fire services, taxes and penalties

Ponoka’s Ronnie Racing wins Hot August Night

About 15,000 people filled the Castrol Raceway stands at the motorsports complex

Ponoka County residents divided on farmland uses

There were about 150 people at the county’s meeting related to reducing confined feeding operations.

Ponoka County slows changes to CFO plans

Residents speak their concerns over the potential of changing areas allowing CFOs

UPDATED: Gord Bamford Foundation Charity Gala brings the stars to Central Alberta

The Gala raises money for various children’s charities throughout Canada

Kids, seniors at risk as smoke from distant fires hangs over parts of B.C.

B.C. Centre for Disease Control says children’s lungs don’t fully develop until about age 10

New plan to lift more than two million people past the poverty line

Anti-poverty strategy will aim for 50 per cent cut in low-income rates: source

Liberals scrap lottery system for reuniting immigrants with their parents

Lottery for parent sponsorship to be replaced, more applications to be accepted

Ponoka RCMP investigate commercial break and enter

Other RCMP files include suspects photographing rural properties and other theft files

Trudeau says he won’t apologize to heckler, pledges to call out ‘hate speech’

Prime Minister had accused woman of racism as she shouted about illegal immigration at Quebec rally

Smoke from B.C. wildfires prompts air quality advisories across Western Canada

A massive cloud of smoke hangs over B.C. and Alberta due to wildfires

Pope on sex abuse: “We showed no care for the little ones”

In response to the Pennsylvania report, Francis labeled the misconduct “crimes”

Multiple quakes kill at least 12 on Indonesian islands

A shallow magnitude 6.9 quake that hit about 10 p.m causing landslides

Most Read