Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average snowfall in July
- Average snowfall days in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
July, with average temperatures reaching a high of 85.1°F (29.5°C) and a low of 68.5°F (20.3°C), is the warmest month.Heat index
The average heat index in July is computed to be a sweltering 95°F (35°C). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The perception of temperature can be subjective, varying based on activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.
Humidity
In Port Penn, the average relative humidity in July is 76%.Rainfall
In Port Penn, during July, the rain falls for 16.5 days and regularly aggregates up to 2.83" (72mm) of precipitation. In Port Penn, during the entire year, the rain falls for 147.7 days and collects up to 27.8" (706mm) of precipitation.Snowfall
In Port Penn, snow does not fall in June through October.Daylight
The average length of the day in July is 14h and 38min.On the first day of July, sunrise is at 5:39 am and sunset at 8:33 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 8:15 pm EDT.
Sunshine
With an average of 10.7h of sunshine, July has the most sunshine of the year.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 unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 6 during July leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the warmest months?
How hot is July?
What is the average humidity in July?
How many days does it rain in July?
When it does not snow?
How many hours of daylight does Port Penn have in July?
When is the sunrise / sunset in July?
What month has the most sunshine?
How many hours of sunshine does Port Penn have in July?
What are the months with the highest UV index?
How high is the UV index in July?
Average temperature in July
Port Penn, DE
- Average high temperature in July: 85.1°F
The warmest month (with the highest average high temperature) is July (85.1°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in July: 68.5°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (27°F).
Average pressure in July
Port Penn, 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
Port Penn, DE
- Average wind speed in July: 5.8mph
The windiest months (with the highest average wind speed) are February, March and April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in July
Port Penn, DE
- Average humidity in July: 76%
The months with the highest relative humidity are May, June, September and October (77%).
The month with the lowest relative humidity is April (72%).
Average rainfall in July
Port Penn, DE
- Average rainfall in July: 2.83"
The wettest month (with the highest rainfall) is August (3.23").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in July
Port Penn, DE
- Average rainfall days in July: 16.5 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is November (8 days).
Average snowfall in July
Port Penn, DE
- Average snowfall in July: 0"
The month with the highest snowfall is March (2.32").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in July
Port Penn, DE
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in July /
Average sunshine in July
Port Penn, 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 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in July
Port Penn, DE
- Average sunshine days in July: 11.8 days
The month with the most sunshine days is November (20.6 days).
The months with the least sunshine days are May and July (11.8 days).
Average UV index in July
Port Penn, 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 and December (UV index 2).
Average cloud cover in July
Port Penn, DE
- Average cloud cover in July: 31
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in July
Port Penn, 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).
Port Penn, Delaware, USA
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