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 »
  July, characterized by an average high temperature of 84.9°F (29.4°C) and a low temperature of 68.4°F (20.2°C), is generally the warmest month in Wilmington, Delaware. July, known for its average high temperature of 84.9°F (29.4°C) and an average low temperature of 68.4°F (20.2°C), is the warmest month in Wilmington.
• Dover - July »
  A highlight of July is the soaring temperature, reaching a peak of 84.2°F (29°C) for the year which is the highest average high temperature of the year. July, with its average high-temperature of 84.2°F (29°C) and an average low-temperature of 70°F (21.1°C), holds the record as the warmest month in Dover, Delaware.
• Newark - July »
  July is the month that records the highest temperatures in Newark, Delaware, with averages ranging from a high of 84.7°F (29.3°C) to a low of 68°F (20°C). The month with the most sunshine in Newark is July, with an average of 10.8h of sunshine.
• Middletown - July »
  With average high temperatures of 84.7°F (29.3°C) and lows of 68.4°F (20.2°C), July is the warmest month in Middletown, Delaware. With an average of 10.6h of sunshine, July has the most sunshine of the year in Middletown, Delaware.
• Smyrna - July »
  In Smyrna, July registers the highest temperatures, averaging 84.4°F (29.1°C) at the peak and 69.3°F (20.7°C) at the lowest. July signifies the peak of summer in Smyrna with the highest average temperatures of the year.
• Milford - July »
  In Milford in July, during 17.3 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. July has the most sunshine of the year in Milford with an average of 10.8h of sunshine.
• Seaford - July »
  July, the crown of summer in Seaford tops the year with the highest temperatures. The months with the most rainfall in Seaford are July and August, with an average 1.06" (27mm) of precipitation.
• Georgetown - July »
  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). Georgetown's temperatures peak on average in July, reaching 82.9°F (28.3°C) at their highest and 70.9°F (21.6°C) at their lowest.
• Elsmere - July »
  July is the month that records the highest temperatures in Elsmere with averages ranging from a high of 85.3°F (29.6°C) to a low of 68.5°F (20.3°C). July has the most sunshine of the year in Elsmere with an average of 10.8h of sunshine.
• New Castle - July »
  The month with the most sunshine in New Castle is July, with an average of 10.8h of sunshine. July is the month when New Castle's temperatures reach their peak, with averages of 84.9°F (29.4°C) and lows of 68.5°F (20.3°C).
• Lewes - July »
  July, characterized by an average high temperature of 80.6°F (27°C) and a low temperature of 73°F (22.8°C), is generally the warmest month in Lewes, Delaware. In July, the average ocean temperature in Lewes, Delaware, is 75°F (23.9°C).
• Rehoboth Beach - July »
  July is the heart of summer in Rehoboth Beach, Delaware, bringing along with it the year's highest temperatures, with a top average of 80.2°F (26.8°C). In Rehoboth Beach, Delaware, in July, it is raining for 10.2 days, with typically 0.55" (14mm) of accumulated precipitation.