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A coating of graupel occurred at some northern NJ locals on May 15, such as this Sparta (Sussex County) residence (photo by Erik Aronson).

A Tale of Multiple Seasons Within a Month and an Almost Backward Spring: May and Spring 2016 Recaps

Dr. David A. Robinson
New Jersey State Climatologist
June 7, 2016

May had many weather faces. Cool, damp weeks to start things off, a blustery mid-month day with some frozen precipitation, a week of summer heat, and an early Memorial Day deluge up the New Jersey Turnpike corridor. When all was summed and averaged, the mean monthly statewide temperature came in at 60.0°. This was 0.8° below normal and ranked as the 55th coolest of the past 122 Mays. Precipitation averaged 5.01”, which is 1.01” above average and 23rd wettest.

Rain fell on a number of May days across NJ, keeping vegetation green and fire danger down. It was most plentiful in the southern half of the state, where Mount Laurel Township (Burlington County) totaled 7.74”. This was followed by Mount Ephraim (Camden) with 7.68”, Washington Township (Gloucester) 7.54”, Salem (Salem) 7.41”, Cinnaminson (Burlington) 7.02”, and Estell Manor (Atlantic) and Merchantville (Camden) each with 7.00”. The northwest corner had the least rainfall in May, with just 3.01” in Andover (Sussex) and North Arlington (Bergen), along with Mount Olive (Morris) at 3.04”, Hackettstown (Warren) 3.05”, and Franklin (Sussex) and Wantage (Sussex) each with 3.06”.


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