Statewide average temperature in November was 46.5°F according to preliminary data from the National Climatic Data Center (NCDC). This was 1.5°F below the 1981-2010 normal of 48.0°F (Figure 1) and was the fourth month this year with below normal temperatures.
Statewide precipitation in November averaged 2.65 inches, 0.90 inches below the 1981-2010 mean of 3.55 inches (Figure 2). Much of this month’s precipitation fell on the 27th in association with a strong coastal storm.
Statewide Spatial Averages
Mean monthly temperatures were well below normal across the entire DEOS (deos.udel.edu) network in November, with the largest departures found in southern and coastal Sussex County (Figure 3). Maximum temperatures were uniformly below normal across the entire State (Figure 4), while average minimum temperatures were below normal at all locations except portions of Chester County, PA where they were near normal (Figure 5).
Precipitation was below normal throughout the State, except for stations in the northeastern portion of New Castle County (Figure 6). The largest negative precipitation anomalies were found across inland, southern Delaware and across portions of Chester County, PA.