Preliminary data indicates that the statewide average temperature in November was 47.5°F, which is the normal value for the month (Figure 1).
Delaware’s statewide precipitation for November 2017 averaged 2.01 inches, 1.39 inches below the 1981-2010 mean (Figure 2), placing it in the driest one-third of Novembers since 1895.
Statewide Spatial Averages
Data from the Delaware Environmental Observing System (DEOS) show that temperature departures varied depending upon location across the State, with no departures exceeding 3°F (Figure 3). Precipitation departures were below normal at each station (Figure 4), with the driest conditions found across northern Delaware and Chester County, PA.