WINTER 2010-11

Weather in Historical Perspective
Kearny, NJ

WINTER 2010-11: From December into February to February the pattern was dominated by 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 in December 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. The temperature in January averaged 30.1F and was 1.5 degrees below normal. The month ranked as the 12^th coldest such month on record (1977) and the coldest since 1996.  The month was also the 3^rd consecutive month with below normal temperatures.  Nineteen days average near or above normal. Temperature extremes included 55F on the 2^nd and 4F on the 24^th. The temperature in February averaged 35.1F and was 5.2 degrees above normal. The pattern revered with a trough ion the West and a ridge in the East,  The AO and the NAO were positive. The month tied with February 2006 as the 13^th warmest such month.  Twelve days averaged near or below normal. Temperature extremes included 69F on the 18^th and 13F on the 11^th. There were 8 days with maximums of 50F or higher and 2 days with maximums of 60F or higher. There were only 3 days with maximums of 32F or lower.

Precipitation in December 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. Precipitation in January totaled 3.39 inches and ranked as the 21^st driest such month on record and the driest since 2004. The month was alsi the 4^th consecutive such month with below normal precipitation. There were 10 days with measurable precipitation. Most of the month’s rainfall fell on the 26^th-27^th.  Snowfall was also above normal with 35.8 inches.  This January was the snowiest on record (1976-77-2010). The most received in a 24-hour period was 18.0 inches on the 26^th-27^th. Precipitation in February totaled 3.94 inches and ranked as the 11^th wettest such month on record and the driest since 1986. The month was also the 2^nd consecutive such month with above normal precipitation. There were 8 days with measurable precipitation. The most to fall in a 24-hour period was 1.81 inches on the 24^th and the 25^th.  Snowfall was below normal for the first time this season. with only 4.5 inches.  The month ranked as the 1th least snowiest such month and the least since 1997. The most received in a 24-hour period was 3.0 inches on the 21st.

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