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Illinois averages around 50 days of thunderstorm activity a year which put it somewhat above average for number of thunderstorm days for the United States. Illinois is vulnerable to tornadoes with an average of 54 occurring annually, which puts much of the state at around 9.7 tornadoes per 10,000 square miles (30,000 km 2 ) annually.
The greatest amount of precipitation that fell in a 24-hour period was 9.35 in (237.5 mm) on August 13–14, 1987. That event also set the records for heaviest 6 and 12 hour rainfall amounts and contributed to August 1987's record rainfall. The heaviest calendar day snowfall was 18.6 in (47.2 cm), again at O'Hare, on January 2, 1999. [16]
Temperatures greater than 90 °F. occur about 45 days per year in the south, and 12 days per year in the north. Temperatures below zero °F. occur one day or less per year in the south, and 12 days per year in the north. Annual rainfall is 34 inches (860 mm) in the north and 46 inches (1,200 mm) in the south. Prevailing winds are from the west.
Archived from the original on 29 June 2011. Retrieved 22 December 2010. Caçador has the lowest recorded temperature, officially, in Brazil, of −14 °C in 1952. Another record, unofficial, of −17.8 °C in 1996-06-29, at the summit of Morro da Igreja, Urubici, also in Santa Catarina, would give the record to this locality.
This is a selected list of cities around the world with their average monthly precipitation in litres per ... Year Jan Feb Mar Apr May ... Canada: 1,000.3 77.2 62.7 ...
On average, Winnipeg, a city located in the southern third of Manitoba, measures 9.26 inches (23.52 cm) of rain per summer. This summer, rainfall totals will likely be lower than that.
According to a 2021 report from The Nature Conservancy, the average daytime temperature in Illinois has increased by 1 to 2 °F (0.6 to 1.2 °C) over the historical average in the last 100 years. Additionally, the nighttime minimum temperatures are rising at a faster rate than the daytime high temperatures.
Most of Canada has a continental climate, which features a large annual range of temperatures, cold winters, and warm summers. Daily average temperatures are near −15 °C (5 °F), but can drop below −50 °C (−58 °F) with severe wind chills. [1] In non-coastal regions, snow can cover the ground for almost six months of the year, while in ...