Colors of the following climate diagrams: Ontario British Columbia
Daily maximum temperatures
The highest daytime temperatures in British Columbia are reached in July with an average of 22.5 °C. The coldest month, on the other hand, is December, with an average of just -1.6 °C. In Ontario, July is the warmest month, with 26.8 °C. There, it is coolest in January with an average of -3.7 °C.
Night time lows
At night, it cools down to varying degrees depending on the country and altitude. In British Columbia, temperatures drop as low as -8.3 °C in January. The warmest nights are in July at 10.7 °C. In Ontario, it is coolest at night in January at -12.3 °C and warmest in July at 15.3 °C. This corresponds to a cooling of 6.6 to 12.0 °C in British Columbia and 7.6 to 12.1 °C in Ontario.
The humidity of the air depends to a large extent on the air temperature. The warmer the air, the more water it can absorb. At a temperature of 25°C it is 23 grams per cubic meter, at 30 degrees it is already 26 grams. Therefore, the air humidity is given as a relative value to the temperature-dependent maximum amount. It becomes unpleasant when high humidity is combined with high temperatures.
Rainy days per month
By definition, a rainy day is a day on which at least 0.1 liters of precipitation per m² fall. This corresponds to a 1 square meter puddle in which the water stands 0.1 mm high — insofar as the water does not seep away or evaporate. So it does not have to rain all day long. January brings the most rainy days (10.8) in British Columbia. With an average of only 6.9 days, August is the friendliest. In Ontario, it rains most often in October with 10.3 days.
Precipitation amount per day
Depending on the season and the location of a country, the wind brings a varying amount of water with it. As a rule, the water evaporating in the oceans is absorbed and then transported inland. The greatest amount of rain (hail or dew are also forms of precipitation) in British Columbia occurs in November, when about 4.0 liters per square meter fall per day. In Ontario, the average amount of precipitation ranges from 1.5 liters per day in January to 3.2 in June. However, these are average values. If you consider that there are only 9.3 rainy days in Ontario in June, each of them accounts for about 10.2 liters.
Sunshine hours per day
With 2,263 hours of sunshine per year, Ontario is in the lead. The most hours of sunshine (10.1 per day) are in July. British Columbia falls into second place with only 1,935 hours. There the sun is visible in December for only 1.3 hours per day, so not hidden behind clouds.
Hours of daylight
The length of a day varies throughout the year and depends on the distance from the equator. In December, the day in British Columbia is only 7.6 hours long. In June, on the other hand, it is 17.0 hours. In Ontario, it is 8.7 hours in December and 15.8 in June.