Forecasters: weekend cold snap not unusual

PITTSBURGH (AP) — Forecasters say the sudden cold snap that hit Pennsylvania over the weekend was a little late but not unprecedented.

Aaron Tyburski, a forecaster with the National Weather Service in State College says the weekend cold snap came from an Arctic high pressure system that came down from Canada, and light winds and clear skies helped temperatures to cool off in the evening. Temperatures dropped to 38 degrees Monday morning in Philadelphia and 31 on Sunday morning in Pittsburgh.

Tyburski says spring variations are normal from year to year. Philadelphia’s average last frost date varies from April 3 to April 27.

Temperatures across much of the state are expected to rise slightly this week, with lows in the 30s and 40s and highs in the 50s or low 60s.

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