July weather forecast
Delaware, USA

July in Delaware is often considered the peak of summer, with temperatures that can become quite hot. The coastal regions may feel the heat more oppressively due to the high degree of humidity, a significant change from the more temperate climate of June.

Temperatures of 90°F (32.2°C) and above are not uncommon in July, occurring for 15 to 30 days during this hot summer month. Nights remain more comfortable, but the frequent hot and humid periods can create an overall sensation of warmth.

July is one of the wettest months in Delaware, contributing to the state's annual rainfall of 44" (1118mm) to 47" (1194mm). The rainfall, though uniform over the year, may be influenced by occasional storms that punctuate the otherwise hot and humid conditions.

The geographical factors, including the Atlantic Ocean and the Appalachian Mountains, maintain their moderating influence, even though the barrier effect of the mountains has less impact on the summer climate.

In terms of extreme weather records, Millsboro recorded Delaware's highest temperature of 110°F (43.3°C) on July 21, 1930. The south of Delaware may also experience milder temperatures and consequently a longer growing season.

July's weather in Delaware is emblematic of summer in full swing, with temperatures that can soar, rainfall that nourishes, and humidity that envelops. It's a time of vibrancy and life, both in the natural landscape and in the bustling summer activities that fill the state.

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• Wilmington - July »
  In Wilmington in July, the average water temperature is 69.8°F (21°C). In Wilmington, the zenith of summer arrives with July, characterized by the year's highest temperatures, prolonged sunshine, and minimal cloud cover.
• Dover - July »
  A highlight of July is the soaring temperature, reaching a peak of 84.2°F (29°C) for the year in Dover which is the highest average high temperature of the year. July, on average, is the warmest month in Dover registering a high temperature of 84.2°F (29°C) and a low of 70°F (21.1°C).
• Newark - July »
  Newark registers the average highest temperatures during July, with peaks of 84.7°F (29.3°C) and lows of 68°F (20°C). July tends to be the warmest month in Newark, with temperatures averaging a daily high of 84.7°F (29.3°C) and a low of 68°F (20°C).
• Middletown - July »
  In Middletown, the month of July is known for its highest average temperatures, reaching a high of 84.7°F (29.3°C) and a low of 68.4°F (20.2°C). In Middletown, Delaware, in July, during 15 rainfall days, 2.44" (62mm) of precipitation is typically accumulated.
• Smyrna - July »
  July, known for its average high temperature of 84.4°F (29.1°C) and an average low temperature of 69.3°F (20.7°C), is the warmest month in Smyrna. July, with its high-temperature average of 84.4°F (29.1°C) and a low-temperature average of 69.3°F (20.7°C), is the warmest month in Smyrna.
• Milford - July »
  July, with its average high-temperature of 83.1°F (28.4°C) and an average low-temperature of 70.7°F (21.5°C), holds the record as the warmest month in Milford, Delaware. On the last day of July, in Milford sunrise is at 6:01 am and sunset at 8:14 pm EDT.
• Seaford - July »
  July, known for its average high temperature of 84.4°F (29.1°C) and an average low temperature of 69.8°F (21°C), is the warmest month in Seaford, Delaware. On the first day of July in Seaford, Delaware, sunrise is at 5:41 am and sunset at 8:31 pm.
• Georgetown - July »
  The month with the most sunshine in Georgetown, Delaware, is July, with an average of 10.9h of sunshine. As Georgetown steps into the peak of summer in July, temperature reaches its annual zenith, fluctuating between the highest of 82.9°F (28.3°C) and lowest at 70.9°F (21.6°C).
• Elsmere - July »
  In Elsmere during July, the rain falls for 16.9 days and regularly aggregates up to 2.64" (67mm) of precipitation. July is the month when Elsmere's temperatures reach their peak, with averages of 85.3°F (29.6°C) and lows of 68.5°F (20.3°C).
• New Castle - July »
  In New Castle during July, the rain falls for 16.2 days and regularly aggregates up to 2.4" (61mm) of precipitation. July has the most sunshine of the year in New Castle with an average of 10.8h of sunshine.
• Lewes - July »
  In Lewes in July, during 18.6 rainfall days, 3.78" (96mm) of precipitation is typically accumulated. How many hours of sunshine does Lewes have in July?
• Rehoboth Beach - July »
  In Rehoboth Beach during July, the rain falls for 10.2 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Rehoboth Beach, Delaware, during July, the rain falls for 10.2 days and regularly aggregates up to 0.55" (14mm) of precipitation.