Jim Munley's Local Climate Data

Local Climate Data
Kearny,  NJ
DECEMBER 2010

DECEMBER 2010: The month featured a ridge in the West and a trough in the East.  Strong blocking was observed in the high latitudes.  There was a negative NAO and a positive PNA and a negative AO.

The temperature averaged 32.7F and was 4.2 degrees below normal. The month ranked as the 6^th coldest such month on record (1977) and the coldest since 1985. The month was also the 2^nd consecutive such month with below normal temperatures and the 2^nd consecutive month with below normal temperatures. Only 11 days averaged near or above normal. Temperature extremes included 64F on the 1^st and 16F on the 27^th. There were 2 days with maximums of 50F or higher and 1 day with maximums of 60F or higher.  There were also 4 days with maximums of 32F or lower and 28 days with minimums of 32F or lower.      

Precipitation totaled 3.52 inches and ranked as the 19^th wettest such month on record and the wettest since 1997.  The month was also the 4^th consecutive such month with near to above normal precipitation. There were 5 days with measurable precipitation. Most of the month’s rainfall fell during the first half of the month. The most to fall in a 24 hour period was 1.50 inches which occurred on the 1^st which was a record for the day. Snowfall was above normal with 19.1 inches.  The most received in a 24-hour period was 15.0 inches on the 26^th which was a record for the day. There were 18 clear days and only 6 overcast days.