Average Temperatures and Rainfall for Delaware

Average annual temperatures for Delaware (13°C/55°F) are the same as the average for United States (13°C/55°F).

Average annual rainfall for Delaware (1,323mm/52 inches) is significantly above the average for United States (1,039mm/41 inches).

What is the warmest or hottest month in Delaware?

July is the hottest or warmest month in Delaware, with an average maximum temperate of 31°C/88°F.

What is the coldest or coolest month in Delaware?

January is the coolest or coldest month in Delaware, with an average minimum temperate of -4°C/25°F.

What is the most rainy or wettest month in Delaware?

August is the wettest or most rainy month in Delaware, with an average rainfall of 148mm/6 inches.

What is the least rainy or driest month in Delaware?

November is the driest or least rainy month in Delaware, with an average rainfall of 84mm/3 inches.

What is the warmest or hottest place in Delaware?

Dover is the hottest or warmest place in Delaware, with an average maximum temperate of 13°C/55°F.

What is the coldest place in Delaware?

Wilmington is the coldest place in Delaware, with an average maximum temperate of 13°C/55°F.

What is the most rainy or wettest place in Delaware?

Newark is the most rainy or wettest place in Delaware, with an average annual rainfall of 1,328mm/52 inches.

What is the least rainy or driest place in Delaware?

Dover is the least rainy or driest place in Delaware, with an average annual rainfall of 1,222mm/48 inches.

Average Monthly Temperatures
Average Maximum Temperature Average Minimum Temperature
Average Monthly Rainfall
PlaceMin TempMax TempAvg TempRainfall
Dover 7 19 13 1,222
Newark 8 18 13 1,328
Wilmington 8 18 13 1,328