Growing Season

Growing Season Is Over for the Entire State

November 12, 2018 - 12:40pm -- Dave Robinson

Frost photo

With today’s (11/12) minimum temperature at West Cape May (Cape May County) and Lower Alloways Creek Township (Salem) falling to 30° and 32°, respectively, the growing season has ended across the Garden State. The growing season is considered to be the count of days between the last freeze of the spring and the first freeze of the fall (counting neither of those freezing days). This made for a 214 day growing season at West Cape May, while the Lower Alloways Creek Township weather station was just installed in July, thus a seasonal number is unavailable. These first freezes were preceded by a day at the Atlantic City Mariana (Atlantic) and Harvey Cedars (Ocean), which fell to 32° and 31°, respectively, on the 11th. Based on observations from these Rutgers NJ Weather Network stations (the 62 stations upon which the growing season is determined), these two locations had NJ’s longest growing seasons. The Marina saw its last spring freeze on March 22nd, giving it a 233 day season. Harvey Cedars last froze on April 2nd, thus ended with a 222 day season.

Rapid Transition: October 2018 Recap

November 5, 2018 - 7:37pm -- Dave Robinson

Coastal flood photo

October was a tale of two half-months. Summer-like weather prevailed through the 11th, quickly transitioning to fall-like conditions on the 12th. Passage of the first strong cold front of the season was responsible for the change. Moderate to heavy rain accompanied the front in northwest NJ during the daytime hours of the 11th. That evening, and into the morning of the 12th, moisture from the remnants of once major Hurricane Michael ran up against the front and brought heavy rain to south Jersey. This one-two punch was followed on the 17th by the first freezing temperatures of the season at a few locations and a more widespread freeze on the 19th. Generally cool conditions prevailed the remainder of the month. The remnants of yet another major hurricane, Willa, provided energy and moisture to a quick-hitting nor’easter on the morning of the 27th that brought some of the worst coastal flooding since Sandy in 2012. Michael was an Atlantic storm that made landfall in the Florida panhandle, while Willa was an eastern Pacific storm that came ashore on the west coast of Mexico.

First Widespread Freeze of the Season

October 19, 2018 - 10:51am -- Dave Robinson

Oct 19 minimum temperature map

This morning was a frosty one, with many NJWxNet locations across the state seeing their first freezing temperatures of the season. The accompanying map shows that most every location away from coastal and urban environs dipped to the freezing point or lower. Walpack (Sussex County), the traditional cold spot in NJ on calm clear nights, was the coldest spot at 24°. Atlantic City Marina (Atlantic) and Lower Alloways Creek, along the Delaware Bay coast in Salem County, were mildest, with lows of 46°. All other NJWxNet sites were no milder than 42°. One of the more interesting cold readings was the 32° minimum at Jersey City (Hudson). This station is located in Liberty State Park, demonstrating that even parkland within urban regions can get awfully chilly on calm, clear nights. However, it is a bit surprising to see this low, given that the station is quite close to the waters of NY Harbor.

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