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NJ Precipitation and Temperature departures
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This state summary was produced to meet a demand for state-level information in the wake of the Third U.S. National Climate Assessment. The summary covers assessment topics directly related to NOAA’s mission, specifically historical climate variations and trends, future climate model projections of climate conditions during the 21st century, and past and future conditions of sea level and coastal flooding.

Click on the above link to view a list of publications that focus on the weather and climate of a particular state or region. Included are 164 references for 42 states! The earliest is from 1847.

Examine a century's worth of weather observations from locations around the state.

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A cirrus cloud deck partially fills the sky looking southeast from Jenny Jump State Park in Hope Township (Warren County) around 10:30 AM on March 21. Inset in the upper right is a visible satellite image from the same time showing the cirrus pattern south of Jenny Jump (denoted by the red dot). Photo by Dave Robinson.

Spring Ahead: March 2020 Recap

Dr. David A. Robinson
April 7, 2020

March 2020 was the 6th mildest in New Jersey dating back to 1895. Combined with mild rankings of 9th in January and 4th in February, 2020 has started off as the 2nd mildest on record at 5.8° above the 1981–2010 average. The 40.8° average only falls behind 2012’s 41.4°. Six of the ten mildest January–March intervals in the past 126 years have occurred since 2002.

March averaged 46.3° across NJ, which is 5.5° above average. The average maximum of 56.2° (+5.4°) ranked 7th mildest and the minimum of 36.4° (+5.6°) 2nd mildest. Anomalies were +5.8° in both the southern (47.9°) and coastal (47.7°) divisions, ranking 6th and 4th mildest, respectively, and +5.0° in the north (43.7°), ranking 9th mildest. As a result of the premature warmth, vegetation green up across the state was at least two weeks earlier than normal.

March precipitation, virtually all falling as rain, averaged 3.77” across the state. This was 0.34” below average but was just at the median for the past 126 years, demonstrating that average March values tend to be skewed toward the dry side. The north was driest with an average of 3.53” (-0.43”), with slightly higher values along the coast with 3.69” (-0.62” and south with 3.94” (-0.25”). Snowfall averaged 0.1” in the north, with traces to no snow observed elsewhere.


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