Canada Historical Climate Trends

Canada is the second largest country in the world, with an area of 9,984,670 square km (3,854,082 square miles). Canada has apparently been keeping track of temperatures across the country since 1948. The number of weather stations that track weather, now and in the past, is impossible to determine. Canada’s Weather and Climate website does not make it easy to find that kind of information.

Here are the reports I have been able to find about Climate Trends and Variations in Canada.

Summary of annual mean temperature departure Lineal Trends:

2007: 1.4°C
2008: unavailable
2009: 1.4°C
2010: 1.5°C
2011: unavailable
2012: 1.7°C
2013: 1.6°C
2014: 1.6°C
2015: 1.6°C
2016: 1.7°C
2017: 1.8°C
2018: 1.7°C

Canada 2007

The trend over the period 1948 to 2007 shows a 1.4°C increase when looking at annual temperature departures from the 1951 to 1980 climate normal.

Canada 2009

The blue linear trend line – national annual temperatures warmed by 1.4°C since 1948. Temperature data from more than 330 weather stations were used to compute seasonal and annual departures from normal. A Baseline Average was calculated from 1961-1990 data. The annual mean temperature departure trends for the nation as a whole and for all climatic regions showed confidence levels varying from 90% to 99.9%.

Canada 2010

Annual mean temperature anomalies 1950-2010 as departures from the 1961-1990 average. The red dashed linear trend line indicates national annual temperatures warmed by 1.5°C since 1948. Source: Vincent et al. 2012; Environment Canada 2011.

Canada 2012

The red dashed linear trend line – national annual temperatures  warmed by 1.7°C since 1948.

Canada 2013

The linear trend indicates that annual temperatures averaged across the nation warmed by 1.6°C since 1948.

Global and Canada 2013

Annual mean temperature anomalies and linear trends for the globe, all of Canada, southern Canada (i.e., south of 60°N), and northern Canada (i.e., north of 60°N) over the period 1948–2013 (relative to the 1961–1990 average). Canadian mean temperatures were computed using the CANGRD data set (updated from Zhang et al., 2000), which is based on homogenized temperature data from 338 stations in Canada.

Canada 2014

The linear trend indicates that annual temperatures averaged across the nation warmed by 1.6°C since 1948.

Canada 2015


The linear trend indicates that annual temperatures averaged across the nation warmed by 1.6°C since 1948.

Canada 2016

The linear trend indicates that annual temperatures averaged across the nation warmed by 1.7°C since 1948.

Canada 2017

The linear trend indicates that annual temperatures averaged across the nation warmed by 1.8°C since 1948.

Canada 2018

Winter 2017-2018 – The linear trend indicates that annual temperatures averaged across the nation have warmed by 3.4°C over the past 71 years.

Spring 2018: The linear trend indicates that spring temperatures averaged across the nation have warmed by 1.6°C over the past 71 years.

Summer 2018: The linear trend indicates that summer temperatures averaged across the nation have warmed by 1.5°C over the past 71 years.

Annual 2018: The linear trend indicates that annual temperatures averaged across the nation have warmed by 1.7°C over the past 71 years.

Precipitation to 2016


When averaged across the nation, annual precipitation amounts have tended to be wetter than the 1961-1990 average since the beginning of the 1970s.

Precipitation 2017

Winter precipitation for December 2016, January 2017, and February 2017

Spring precipitation (March-May)

Summer precipitation (June to August)

All of this information is, or was at one time, posted on the Canada Environment and Climate Change website. They state that this information is available for personal or public non-commercial use and may be reproduced, in part or in whole, and by any means, without charge or further permission, unless otherwise specified.

There, I'm finished. Now it is your turn:

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s