Contents
- Weather in October
- Frequently asked questions
- Average temperature in October
- Average pressure in October
- Average wind speed in October
- Average humidity in October
- Average rainfall in October
- Average rainfall days in October
- Average snowfall in October
- Average snowfall days in October
- Average daylight in October
- Average sunshine in October
- Average sunshine days in October
- Average UV index in October
- Average cloud cover in October
- Average visibility in October
Weather in October
Temperature
With October's arrival, Harrow sees a decrease in average high-temperatures, moving from a warm 75.4°F (24.1°C) in September to a comfortable 63°F (17.2°C). The average temperature during October nights is registered at a chilly 46.2°F (7.9°C).Humidity
The average relative humidity in October is 80%.Rainfall
In Harrow, during October, the rain falls for 7.5 days and regularly aggregates up to 0.63" (16mm) of precipitation. Throughout the year, in Harrow, there are 91.3 rainfall days, and 7.28" (185mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
In Harrow, the average length of the day in October is 11h and 7min.On the first day of the month, sunrise is at 6:57 am and sunset at 6:42 pm. On the last day of October, in Harrow, sunrise is at 7:30 am and sunset at 5:58 pm EDT.
Sunshine
In October, the average sunshine is 5.5h.UV index
In October, the average daily maximum UV index in Harrow is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: A maximum daily UV index of 3 during October morphs into the following directions:
Exercise prevention - Protecting skin and eyes from harm is required. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Bear in mind! The Sun's UV radiation can nearly double in intensity due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in Harrow?
What is the average humidity in October in Harrow?
How many days does it rain in October in Harrow?
When it does not snow in Harrow?
Does it snow in Harrow in October?
What is the average length of the day in October in Harrow?
What time are sunrise and sunset in October in Harrow?
How long on average sun shines in October in Harrow?
What is the UV index intensity in October in Harrow?
Average temperature in October
Harrow, PA
- Average high temperature in October: 63°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 October: 46.2°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 October
Harrow, PA
- Average pressure in October: 30.03"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 October
Harrow, PA
- Average wind speed in October: 6.7mph
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 October
Harrow, PA
- Average humidity in October: 80%
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 October
Harrow, PA
- Average rainfall in October: 0.63"
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 October
Harrow, PA
- Average rainfall days in October: 7.5 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 October
Harrow, PA
- Average snowfall in October: 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 October
Harrow, PA
- Average snowfall days in October: 0.1 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 October /
Average sunshine in October
Harrow, PA
- Average daylight in October: 11h and 1min
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 October: 5h and 3min
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 October
Harrow, PA
- Average sunshine days in October: 20.8 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 October
Harrow, PA
- Average UV index in October: 3
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 October
Harrow, PA
- Average cloud cover in October: 44
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 October
Harrow, PA
- Average visibility in October: 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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