Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's advent denotes a minor fluctuation in the average high-temperature to a still warm 75.4°F (24.1°C) from August's 80.6°F (27°C). Harrisburg, in the month of September, anticipates a consistent average low-temperature of 56.8°F (13.8°C).Humidity
In Harrisburg, the average relative humidity in September is 77%.Rainfall
The month with the least rainfall is September, when the rain falls for 10.3 days and typically collects 0.87" (22mm) of precipitation.Snowfall
In Harrisburg, snow does not fall in May through September.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 7:01 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 7:16 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.Note: A maximum high daily UV index of 4 during September translates into the following directions:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in September?
What is the average humidity in September?
What is the driest month?
How many days does it rain in September?
When it does not snow?
Does it snow in September?
How many hours of daylight does Harrisburg have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Harrisburg, OH
- Average high temperature in September: 75.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in September: 56.8°F
The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in September
Harrisburg, OH
- Average pressure in September: 30.04"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in September
Harrisburg, OH
- Average wind speed in September: 6.2mph
The windiest month (with the highest average wind speed) is January (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).
Average humidity in September
Harrisburg, OH
- Average humidity in September: 77%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are October and November (75%).
Average rainfall in September
Harrisburg, OH
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is May (1.81").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Harrisburg, OH
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is May (15.8 days).
The month with the least rainy days is January (7.6 days).
Average snowfall in September
Harrisburg, OH
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.22").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in September
Harrisburg, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (8.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Harrisburg, OH
- Average daylight in September: 12h and 2min
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 September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in September
Harrisburg, OH
- Average sunshine days in September: 17.2 days
The month with the most sunshine days is November (20.7 days).
The month with the least sunshine days is May (11.5 days).
Average UV index in September
Harrisburg, OH
- Average UV index in September: 4
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 September
Harrisburg, OH
- Average cloud cover in September: 33
The month with the most cloud cover is January (Cloud cover 61).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in September
Harrisburg, OH
- Average visibility in September: 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).
Harrisburg, Ohio, USA
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