It's that time of the year when the first killing frost/freeze hits central Pennsylvania. Typically, mid-October is when the first killing frost hits although light frosts can occur as early as mid-September.
Some areas of central Pennsylvania did have some frost in late September, but the duration of the frost and the extent of the frost did not kill most garden plants.
The cold air coming for Saturday morning will allow for a longer-duration frost and freeze and will also allow temperatures outside of the towns to dip will into the 20s, if not the teens.
The high pressure system bringing the cold weather originated in northern Canada and will park itself right over central Pennsylvania by Saturday morning. That will promote clear skies and calm winds which is the best setup for what meteorologist call "radiational cooling."
With the cold weather coming, you still have time to protect your plants. Covering them with buckets or blankets will prevent the frost from forming on the plants and may allow your plants to continue until the next threat of frost and freeze comes along.
Snowy weather is kicking off the month of March across the Northeast as a winter storm is moving into the region.
As a large storm rolls out of the Plains and Midwest, a swath of snow, ice and travel disruptions will extend into the Northeast for the start of March.
Yet another winter storm will take aim at the Northeast and Midwest This week with widespread ice and flooding concerns.
The beginning of March marks the start of meteorological spring in the Northern Hemisphere, but this does not signal the end of winter weather in the United States.
While more storms are on the horizon to start March, the accompanying cold shots will be less extreme.
A storm will whip across the United Kingdom and the North Sea through Sunday with potentially damaging and disruptive winds.
Wellington, WA (1910)
Greatest avalanche disaster in U.S. history. Train swept from tracks at Wellington, killing 98 people.
Heavy wet snow, "worst since '88", crippled NYC, NJ (Congressional Limited). Reading of 24" at Asbury Park; NYC's lowest barometer 28.38"; 28.27" at New Haven; Complete disruption of electricity in New Jersey.
Raleigh, NC (1927)
(1st-2nd) 17.8" of snow -- all-time biggest snowstorm and 24-hour record.