Category Archives: Climate

What were the top weather events for 2018?

The year began with frigid temperatures across Wisconsin. The average temperatures for the first seven days of January were well below normal across southern Wisconsin with most areas at least 15 degrees below normal.

The end of 2018 saw temperatures several degrees warmer than normal, including a record high temperature of 50 F on Dec. 27, tying a record high for the date, last set in 2003, and previously set in 1936 and 1946. Continue reading

Category: Climate, Meteorology, Seasons

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Will there be a White Christmas in Madison this year?

In testimony to the infectious appeal of the famous scenes memorialized by Nathaniel Currier and James Ives, prolific lithographers of the middle 19th century, there is an enduring obsession with snow at Christmastime.

A so-called White Christmas is officially observed anytime there is 1 inch of snow on the ground on Christmas morning, whether or not it is snowing at the time. Continue reading

Category: Climate, Meteorology, Seasons

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What does the recent cold and snow say about climate change?

It has been quite a week for discussion of global warming.

November has been remarkably cold this year for most of the eastern United States.

In Madison, as just one example, the monthly temperature through Friday has been 6.2 degrees Fahrenheit below normal for the month and, with the prospect of more cold to come, it appears the month will end well below normal. Continue reading

Category: Climate, Seasons

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Is climate change caused by human activity?

In a recent television interview, President Trump made the claim that climate scientists who conclude that climate change is a result of human influence on the atmosphere have a “very big political agenda.” The president went on to state, in … Continue reading

Category: Climate

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Is the Earth’s spin axis drifting?

The Earth revolves around an imaginary line that passes through the North and South Poles, known as the spin axis. As it spins the Earth drifts and wobbles. And now scientists have identified three reasons.

The Earth wobbles on its axis once every 27,000 years, similar to a spinning top. This alters the relationship between the solstices and the distance from the Earth to the Sun. For example, 11,000 years ago the Northern Hemisphere summer solstice occurred at perihelion, when the Earth is closest to the Sun. That is almost the exact opposite of the case today, Continue reading

Category: Climate, Seasons

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