Climate Change Adaptation Strategy
Watershed Trends and Projections
Take a look at the trends and projections for the Lake Simcoe watershed in this infographic (or scroll down to read the text version).
![watershed trends and projections infographic](https://lsrca.on.ca/wp-content/uploads/2023/07/watershed-trends-predictions-683x1024.gif)
Annual Mean Temperatures
Annual temperatures are expected to increase by up to 5.5ºC.
- Baseline 1981 to 2010 – 6.8ºC
- 2020s – 8.2ºC
- 2050s – 10.1ºC
- 2080s – 12.3ºC
Seasonal Mean Temperatures
Daily temperatures are projected to significantly increase in every season.
Projected increase by 2080:
- Winter (baseline -6ºC) – 6.5ºC
- Spring (baseline 5.5ºC) – 5ºC
- Summer (baseline 19ºC) – 5.5ºC
- Fall (baseline 9ºC) – 5ºC
Temperature Extremes
More hot days, fewer cold days.
Days above 30ºC
- Baseline – 6
- 2020s – 14
- 2050s – 27
- 2080s – 48
Days below -10ºC
- Baseline – 38
- 2020s – 32
- 2050s – 24
- 2080s – 16
Precipitation Events
- Intensity – Precipitation will fall at a faster rate.
- Duration – The duration of heavy storms will increase.
- Frequency – Heavy storms will occur more frequently.
Annual Mean Precipitation
Annual precipitation is expected to increase. Winter and spring are projected to be significantly wetter.
- Baseline 1976 to 2005 – 884mm
- 2021 to 2050 – 941mm
- 2051 to 2080 – 970mm
Growing Season
Last frost days will be earlier, and first frost days will be later.
- Baseline 1976 to 2005 – 148.1 days
- 2021 to 2050 – 171.7 days
- 2051 to 2080 – 193.3 days
Who to Contact
Integrated Watershed Management
✆ 905-895-1281
✆ 1-800-465-0437 Toll free info@LSRCA.on.ca
![information, icon](https://lsrca.on.ca/wp-content/uploads/2023/05/information-icon-help-1294813-300x300.png)
Climate Change Adaptation Stategy
Water Quality in our Rivers and Streams
Water Quantity
Stream and River Ecosystems
The Lake Ecosystem
Terrestrial Natural Heritage
Watershed Trends and Predictions (Infographic)