July weather forecastDelaware City, DE
July
Weather in July
July is the heart of summer in Delaware City, with weather patterns leaning towards warm and dry conditions. The temperature, daylight hours, and sea temperatures reach their peak during this month. Notably, the sea temperature reaches a comfortable 74.4°F (23.6°C), ideal for beach activities. Despite the warm temperatures, July also sees the highest rainfall in the year. However, ample sunshine prevails, providing the city with a wholesome summer ambiance.Temperature
July, recording an average high temperature of 84.7°F (29.3°C) and a low temperature of 68.4°F (20.2°C), is Delaware City's warmest month.Heat index
The heat index for July is appraised at a fiery hot 95°F (35°C). Ensure additional precautions, heat exhaustion and heat cramps may be expected. Heatstroke could occur from sustained activity.Metrics for the heat index primarily focus on shaded spots and light wind conditions. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is achieved by amalgamating air temperature with the relative humidity readings. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The body's natural response to excessive warmth is perspiration, as it allows for cooling through sweat evaporation. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
In July, the average relative humidity is 76%.Rainfall
In July, the rain falls for 16.1 days. Throughout July, 2.72" (69mm) of precipitation is accumulated. In Delaware City, during the entire year, the rain falls for 145.9 days and collects up to 24.45" (621mm) of precipitation.Snowfall
In Delaware City, snow does not fall in May through October.Ocean temperature
In Delaware City, the average seawater temperature in July is 74.3°F (23.5°C).Note: Swimming in 74.3°F (23.5°C) water can be enjoyable based on one's cold tolerance and conditions like sunshine, wind, and ambient temperature. (Olympic swimmers compete in waters between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The average length of the day in July is 14h and 38min.On the first day of the month, sunrise is at 5:38 am and sunset at 8:33 pm. On the last day of July, sunrise is at 6:01 am and sunset at 8:15 pm EDT.
Sunshine
The month with the most sunshine in Delaware City is July, with an average of 10.7h of sunshine.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: In July, a regular UV index of 6 translates into these guidelines:
Undertake precautions and comply with sun safety standards. Protection from skin and eye injury is vital. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Alert! UV radiation becomes sharper due to reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Delaware City, DE
- Average high temperature in July: 84.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (38.3°F).
- Average low temperature in July: 68.4°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (26.8°F).
Average pressure in July
Delaware City, DE
- Average pressure in July: 29.96"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in July
Delaware City, DE
- Average wind speed in July: 5.7mph
The windiest months (with the highest average wind speed) are February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in July
Delaware City, DE
- Average humidity in July: 76%
The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).
Average rainfall in July
Delaware City, DE
- Average rainfall in July: 2.72"
The wettest month (with the highest rainfall) is August (3.11").
The driest month (with the least rainfall) is January (1.54").
Average rainfall days in July
Delaware City, DE
- Average rainfall days in July: 16.1 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (7.8 days).
Average snowfall in July
Delaware City, DE
- Average snowfall in July: 0"
The month with the highest snowfall is January (1.65").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in July
Delaware City, DE
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in July
Delaware City, DE
- Average sea temperature in July: 74.4°F
The best month for swimming (with the highest average sea temperature) is August (76.3°F).
The coldest month (with the lowest average sea temperature) is February (40.9°F).
Average daylight in July /
Average sunshine in July
Delaware City, DE
- Average daylight in July: 14h and 36min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in July: 10h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in July
Delaware City, DE
- Average sunshine days in July: 12 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is May (11.8 days).
Average UV index in July
Delaware City, DE
- Average UV index in July: 6
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in July
Delaware City, DE
- Average cloud cover in July: 30
The months with the most cloud cover are February and March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 30).
Average visibility in July
Delaware City, DE
- Average visibility in July: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





