Environment and Climate Change Canada (2020) Climate Trends and Variations Bulletin. It allows API clients to download millions of rows of historical data, to query our real-time economic calendar, subscribe to updates and receive quotes for currencies, commodities, stocks and bonds. Bush E, Gillett N, Watson E, Fyfe J, Vogel F and Swart N (2019) Understanding Observed Global Climate Change; Chapter 2 in Canada’s Changing Climate Report, (ed.) More information about the calculation method for annual average temperature departures can be found in the Climate Trends and Variations Bulletin documentation. The most humid month in Ontario is August with a dew point (an indicator of humidity) of 16° which is Values for grid boxes over large bodies of water are excluded. The driest month in Ontario is April with 1cm of rain and the least days of rain with 2.8 days with some rain, is cold for swimming, a full wet suit is required to spend any length of time in the sea. Retrieved on March 24, 2020. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. The wettest month in Ontario is March with 3.4cm of rain and December has the most days of rain with 4.9 days with some rain, The Temperature change in Canada indicators help show how Canada's surface air temperature has changed since nationwide recording of consistent and comparable climate observations began in 1948. Like the national annual average temperature, seasonal average temperature increased over the 1948 to 2019 period. Temperatures have increased more in northern Canada than in southern Canada. December has the least sunshine with an average of 2 hours of sunshine per day, making it not a particularly sunny month. Seasonal grid points values were averaged together to produce a seasonal time series of temperature departures representing the entire country. Canadian gridded temperature and precipitation anomalies. Observations from nearby co-located stations are sometimes merged to produce longer time series. The baseline values used in these indicators are the annual and seasonal temperature averages for the reference period of 1961 to 1990 (often referred to as the 1961 to 1990 normal). Zhang X, Flato G, Kirchmeier-Young M, Vincent L, Wan H, Wang X, Rong R, Fyfe J, Li G and Kharin VV (2019) Changes in Temperature and Precipitation Across Canada; Chapter 4 in Bush E and Lemmen DS (Eds.) The heat-trapping effect of atmospheric greenhouse gases is well-established. Environment and Climate Change Canada (2020) Adjusted and Homogenized Canadian Climate Data. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. Source: Environment and Climate Change Canada (2020) Adjusted and homogenized Canadian climate data. Regional average temperature departures from the 1961 to 1990 reference value, Canada, 1999 to 2019. Hope average temperature. August is the warmest month of the year. Lemmen; Government of Canada, Ottawa, Ontario, p. 24–72. The least windy month in Ontario is June when the average maximum windspeed is 22kmh and the average wind speed is 13kmh. Government of Canada, Ottawa, Ontario, pp 112-193. Understanding how Canada's climate is changing is important for developing adaptive responses. Temperature departures were assumed to be uniform and equal for a given cell. 444 p. Retrieved on March 24, 2020. Temperature departures were computed for 338 weather stations across Canada and were then applied to a grid with cells of 50 square kilometers. Ont., which is 7 miles from Ottawa. These monthly guides will help you plan for your trip to Canada or decide which month is the best time for you to travel.Find out average temperatures, weather conditions, what to pack, and what to expect in the way of major events and holidays across the country. Temperature is also a key indicator of how the climate is changing in response to human emissions of greenhouse gases (GHGs), as increasing GHG concentrations result in warming of the lower atmosphere. Breaks in the data can be a concern. To mitigate this, the Temperature change in Canada indicators use homogenized and adjusted station data for temperature.