July weather forecast
Winterthur, DE

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Weather in July

July, like June, in Winterthur, Delaware, is another warm summer month, with an average temperature ranging between max 84.9°F (29.4°C) and min 68.4°F (20.2°C).

Temperature

In Winterthur, the peak average temperatures are observed in July, with a high of 84.9°F (29.4°C) and a low of 68.4°F (20.2°C).

Heat index

The average heat index in July is computed to be a tropical 93.2°F (34°C). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', represents the fusion of temperature and moisture in the air to suggest how warm it feels. An individual's perception of weather can be affected by a variety of elements including metabolic differences, being pregnant, and their level of physical exertion. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

In Winterthur, the average relative humidity in July is 74%.

Rainfall

In July, the rain falls for 18.5 days. Throughout July, 3.58" (91mm) of precipitation is accumulated. Throughout the year, there are 168.9 rainfall days, and 35.55" (903mm) of precipitation is accumulated.

Snowfall

In Winterthur, snow does not fall in June through September.

Daylight

In July, the average length of the day is 14h and 40min.
On the first day of July, sunrise is at 5:38 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:16 pm EDT.

Sunshine

The month with the most sunshine is July, with an average of 10.6h 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 value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Updated: Jul 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What time of the year is the hottest?

With average high and low temperatures of 84.9°F (29.4°C) and 68.4°F (20.2°C) respectively, July is Winterthur's warmest month.

Is it hot during July?

In Winterthur, in July, the average high-temperature is 84.9°F (29.4°C), and the average low-temperature is 68.4°F (20.2°C). In July, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is computed to be 93.2°F (34°C).

What is the average humidity in July?

The average relative humidity in July is 74%.

How much does it rain in July?

In Winterthur, Delaware, during July, the rain falls for 18.5 days and regularly aggregates up to 3.58" (91mm) of precipitation.

When it does not snow?

In Winterthur, Delaware, snow does not fall in June through September.

How many hours of daylight does Winterthur have in July?

In Winterthur, the average day length in July is 14h and 40min.

What time are sunrise and sunset in July?

On the first day of July, sunrise is at 5:38 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:16 pm EDT.

What month has the most sunshine in Winterthur?

July has the most sunshine of the year, with an average of 10.6h of sunshine.

How many hours of sunshine does Winterthur have in July?

In Winterthur, the average sunshine duration in July is 10.6h.

When is the highest UV index in Winterthur?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in July?

In July, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in July
Winterthur, DE

Average temperature in July - Winterthur, DE
  • Average high temperature in July: 84.9°F

The warmest month (with the highest average high temperature) is July (84.9°F).
The month with the lowest average high temperature is January (37°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 (25.3°F).

Average pressure in July
Winterthur, DE

Average pressure in July - Winterthur, DE
  • Average pressure in July: 29.96"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in July
Winterthur, DE

Average wind speed in July - Winterthur, DE
  • Average wind speed in July: 5.5mph

The windiest months (with the highest average wind speed) are January, February and March (8.6mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).

Average humidity in July
Winterthur, DE

Average humidity in July - Winterthur, DE
  • Average humidity in July: 74%

The month with the highest relative humidity is October (78%).
The month with the lowest relative humidity is April (72%).

Average rainfall in July
Winterthur, DE

Average rainfall in July - Winterthur, DE
  • Average rainfall in July: 3.58"

The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (2.36").

Average rainfall days in July
Winterthur, DE

Average rainfall days in July - Winterthur, DE
  • Average rainfall days in July: 18.5 days

The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in July
Winterthur, DE

Average snowfall in July - Winterthur, DE
  • Average snowfall in July: 0"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in July
Winterthur, DE

Average snowfall days in July - Winterthur, DE
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is January (6.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in July /
Average sunshine in July
Winterthur, DE

Average daylight in July / Average sunshine in July - Winterthur, DE
  • Average daylight in July: 14h and 4min

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 4min

The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).

Average sunshine days in July
Winterthur, DE

Average sunshine days in July - Winterthur, DE
  • Average sunshine days in July: 9.8 days

The month with the most sunshine days is November (18.6 days).
The months with the least sunshine days are May and July (9.8 days).

Average UV index in July
Winterthur, DE

Average UV index in July - Winterthur, 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
Winterthur, DE

Average cloud cover in July - Winterthur, DE
  • Average cloud cover in July: 31

The months with the most cloud cover are February and March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).

Average visibility in July
Winterthur, DE

Average visibility in July - Winterthur, 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).

Winterthur, Delaware, USA

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