Sunday, November 29, 2015

Snow: St. Patrick's Day record

The 4.7 inches in Philly was a record for a March 17.

Snow: St. Patrick's Day record


In addition to taking over second place on the all-time seasonal snow list in Philadelphia, today’s official 4.7 inches  broke the 122-year-old National Weather Service  record for the date by an inch.

Snow this late in the season is quite unusual, but more snow has fallen on a March 18, 5.4 in 1956, and on a March 19, 9.4, in 1958.

It so happened, however, that 3.5 for March 17 in Philadelphia had stood up since 1892.

Two other points of note:

This was the 14th day of the season on which at least 1 inch of snow was measured officially in Philadelphia, good for a tie for second with the winter of 1898-99.

This was the fourth consecutive month in which monthly snowfall was more than double normal. That would be unprecedented.

Snow records in Philly date to the winter of 1884-85.

One more unofficial note: By our count, this morning's was at least the 14th peak-commuting period directly impacted by falling snow and/or ice. That may or may not be a record, and if it is, may it never be challenged.

Inquirer Weather Columnist
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Everyone talks about the weather, and here we write about it.

When we’re around and conditions warrant, we’ll keep you updated about what’s coming, but we will do our best always to discuss weather and climate developments in context and remind you that nothing in the atmosphere happens in a vacuum.

Tony Wood has been writing about the atmosphere for The Inquirer for 26 years.

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