Category Archives: Seasons

How do you measure how hot the summer is?

One reasonable way to gauge how hot a summer season was is to consider how many days that year reached 90F or above. It turns out that this number is extremely variable here in Madison.

From 1971 to 2016, the average number of days at or above 90F in Madison is 10.9. As is often the case with statistics, however, the average does not convey a sense of the variability. A better way to express that variability is by calculating the standard deviation, which, when added to or subtracted from the average, sets a range in which approximately 2/3 of the years will fall. Continue reading

Category: Climate, Meteorology, Seasons

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When is the summer solstice?

The summer solstice in the Northern Hemisphere is the day when the sun is farthest north. In 2017, this occurs Tuesday at 11:24 p.m. Central Time. As Earth orbits the Sun, its axis of rotation is tilted at an angle … Continue reading

Category: Seasons

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Is the weather nicer on Memorial Day or Labor Day?

Memorial Day traditionally marks the beginning of the summer, while Labor Day marks the end.

People are bound to have their own recollections and opinions about which weekend more reliably delivers agreeable weather here in southern Wisconsin, and those opinions can be colored by many non-meteorological influences. Continue reading

Category: Meteorology, Seasons

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Is the weather in Madison more extreme than other locations in the U.S.?

Sitting nearly in the middle of the vast North American continent, Madison has what is known as a continental climate. Continental climates are characterized by large annual extremes in temperature and humidity as well as very distinct seasons.

The continental nature of Madison’s climate is what makes a year’s worth of weather in Madison usually a lot more varied than a year’s worth in, say, Seattle. Continue reading

Category: Climate, Seasons

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What are the plant hardy zones and how do they relate to climate?

If you are involved with gardening, you probably are aware of the hardy zones listed on seed packets.

Southern Wisconsin is largely in zones 5a and 4b, while northern Wisconsin lies in zones 3a to 4a. Continue reading

Category: Climate, Meteorology, Seasons

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