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
In Harrow, the peak temperatures are generally noted in July, averaging a high of 83.8°F (28.8°C) and a low of 64°F (17.8°C).Heat index
The heat index value for July is evaluated at a hot 91.4°F (33°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.The metrics for the heat index are tailored for both shady environments and light winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'feels like' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
April and July, with an average relative humidity of 76%, are the least humid months.Rainfall
July is the month with the most rainfall. Rain falls for 10.2 days and accumulates 0.91" (23mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
In Harrow, the average length of the day in July is 14h and 44min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:35 pm. On the last day of July, in Harrow, sunrise is at 5:57 am and sunset at 8:16 pm EDT.
Sunshine
The month with the most sunshine is July, with an average of 10.4h of sunshine.UV index
The months with the highest UV index in Harrow are June and July, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: In July, a daily UV index of 6 turns into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the warmest month in Harrow?
Is it hot in Harrow during July?
What is the least humid month in Harrow?
What is the average humidity in July in Harrow?
What is the rainiest month in Harrow?
How much does it rain in Harrow in July?
When it does not snow in Harrow?
How many hours of daylight does Harrow have in July?
When is the sunrise / sunset in July in Harrow?
What month has the most sunshine in Harrow?
How long on average sun shines in July in Harrow?
When is the highest UV index in Harrow?
How high is the UV index in July in Harrow?
Average temperature in July
Harrow, PA
- Average high temperature in July: 83.8°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (34.9°F).
- Average low temperature in July: 64°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in July
Harrow, PA
- 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
Harrow, PA
- Average wind speed in July: 5.2mph
The windiest month (with the highest average wind speed) is March (8.3mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in July
Harrow, PA
- Average humidity in July: 76%
The month with the highest relative humidity is February (81%).
The months with the lowest relative humidity are April and July (76%).
Average rainfall in July
Harrow, PA
- Average rainfall in July: 0.91"
The wettest month (with the highest rainfall) is July (0.91").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in July
Harrow, PA
- Average rainfall days in July: 10.2 days
The months with the highest number of rainy days are June and July (10.2 days).
The month with the least rainy days is January (4.3 days).
Average snowfall in July
Harrow, PA
- Average snowfall in July: 0"
The month with the highest snowfall is March (0.63").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in July
Harrow, PA
- Average snowfall days in July: 0 days
The month with the highest number of snowfall days is February (4.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in July /
Average sunshine in July
Harrow, PA
- Average daylight in July: 14h and 4min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in July: 10h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in July
Harrow, PA
- Average sunshine days in July: 17.2 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is June (16.7 days).
Average UV index in July
Harrow, PA
- Average UV index in July: 6
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in July
Harrow, PA
- Average cloud cover in July: 34
The months with the most cloud cover are February and December (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 34).
Average visibility in July
Harrow, PA
- Average visibility in July: 5mi
The months with the highest visibility are January, February, March, April, November and December (6mi).
The months with the lowest visibility are May, June, July, August, September and October (5mi).
Harrow, Pennsylvania, USA
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