For those seeking warm weather, the ideal time to visit Wilmington, DE is in July, June and August. During these months, temperatures typically soar to an average of 25.84 °C, and you'll find that June, July and April are the sunniest months, with an average of 146.3 hours of sunshine.
Conversely, if you favor cooler weather, consider planning your trip to Wilmington, DE in January, February or March. During this period, you can expect an average temperature of 0.61 °C.
For travelers indifferent to temperature but keen to steer clear of rain, it’s wise to avoid visiting during January, February and October, when the average precipitation in Wilmington, DE reaches 9 mm. Instead, consider the drier months of January, February and March, which feature significantly lower rainfall, averaging only 0 mm.