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United States weather

Weather in New Castle County, Delaware for July 2027

Your guide to New Castle County weather in July - trends and predictions

    Rain 🌧️

  • The climate of New Castle County in July is notably wet, with an average of 15 rainy days, and a total of 281.1 mm of precipitation.

    • More

  • Is July a good time to visit New Castle County? check out the best time to travel to New Castle County page.

  • ✨ Is July a good time to visit New Castle County? – Ask the AI Weatherman

Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
31°/20°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
74 %
Avg humidity

New Castle County Weather July

Move between months or click on a day
June
August
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Moderate rain
37°
2
Moderate rain
36°
3
Fog
36°
4
Light rain
34°
5
Moderate rain
32°
6
Heavy rain
30°
7
Moderate rain
27°
8
Light rain shower
32°
9
Moderate rain
29°
10
Light rain
29°
11
Light rain
30°
12
Fog
30°
13
Fog
30°
14
Light rain
32°
15
Heavy rain
33°
16
Light rain
33°
17
Moderate rain
34°
18
Moderate rain
29°
19
Moderate or heavy rain shower
26°
20
Fog
32°
21
Moderate rain
29°
22
Cloudy
27°
23
Fog
29°
24
Mist
31°
25
Light rain
33°
26
Moderate rain
30°
27
Light rain
30°
28
Moderate rain
31°
29
Fog
32°
30
Patchy rain possible
31°
31
Light rain
31°

Temperatures trend during July in New Castle County

See the weather trend as well as the moving average line

July weather in New Castle County day by day

Click on a date for more information
June August
Date Weather Temperatures Rain UV More
Jul. 1 Moderate rain
Moderate rain
 37° /22° 20.4 mm 11.3
Jul. 2 Moderate rain
Moderate rain
 36° /23° 14.2 mm 9
Jul. 3 Fog
Fog
 36° /24° 0.5 mm 11.3
Jul. 4 Light rain
Light rain
 34° /21° 3.8 mm 11.2
Jul. 5 Moderate rain
Moderate rain
 32° /20° 11.1 mm 11.2
Jul. 6 Heavy rain
Heavy rain
 30° /19° 30.1 mm 8
Jul. 7 Moderate rain
Moderate rain
 27° /21° 12.2 mm 5
Jul. 8 Light rain shower
Light rain shower
 32° /21° 1.9 mm 9
Jul. 9 Moderate rain
Moderate rain
 29° /22° 13.3 mm 8
Jul. 10 Light rain
Light rain
 29° /22° 9.6 mm 7
Jul. 11 Light rain
Light rain
 30° /21° 8.4 mm 9
Jul. 12 Fog
Fog
 30° /21° 0.7 mm 9
Jul. 13 Fog
Fog
 30° /21° 0 mm 10
Jul. 14 Light rain
Light rain
 32° /20° 3.3 mm 9
Jul. 15 Heavy rain
Heavy rain
 33° /23° 35.3 mm 9
Jul. 16 Light rain
Light rain
 33° /23° 2.7 mm 7
Jul. 17 Moderate rain
Moderate rain
 34° /21° 11.2 mm 10
Jul. 18 Moderate rain
Moderate rain
 29° /22° 16.5 mm 11
Jul. 19 Moderate or heavy rain shower
Moderate or heavy rain shower
 26° /20° 6.6 mm 8
Jul. 20 Fog
Fog
 32° /19° 0 mm 10
Jul. 21 Moderate rain
Moderate rain
 29° /21° 18.5 mm 9
Jul. 22 Cloudy
Cloudy
 27° /19° 0.4 mm 10.8
Jul. 23 Fog
Fog
 29° /18° 0 mm 10.8
Jul. 24 Mist
Mist
 31° /17° 0 mm 10.8
Jul. 25 Light rain
Light rain
 33° /19° 7.7 mm 10.7
Jul. 26 Moderate rain
Moderate rain
 30° /19° 21.7 mm 10.7
Jul. 27 Light rain
Light rain
 30° /21° 3.8 mm 8
Jul. 28 Moderate rain
Moderate rain
 31° /21° 21.4 mm 8
Jul. 29 Fog
Fog
 32° /21° 0.2 mm 10.6
Jul. 30 Patchy rain possible
Patchy rain possible
 31° /21° 1.1 mm 10.5
Jul. 31 Light rain
Light rain
 31° /20° 4.6 mm 9
Next
Important Notice
Our weather forecast for New Castle County in July is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the New Castle County forecast closer to your planned date for the most up-to-date weather information.
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New Castle County in July - FAQ

What are the expected maximum and minimum temperatures in New Castle County during July?
Expect warm days with temperatures around 31°, cooling to mild conditions of 20° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in New Castle County during July?
Significant rainfall exceeding 281.1 mm is expected in New Castle County during July, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in New Castle County during July?
The average wind speed in New Castle County during July is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

July rainfall patterns in New Castle County

Explore the daily rainfall trends and prepare for New Castle Countys July weather 💧
Typically, New Castle County has 15 rainy days in July with a total of 281.1 mm of rainfall.

UV exposure in New Castle County during July

Stay informed about UV levels for safe outdoor activities throughout the month of July ☀️
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