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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from 82.9°F (28.3°C) in August to a still moderately hot 77°F (25°C). Throughout September, the temperature tends to fall to a consistent average low of 58.1°F (14.5°C).Humidity
September and October, with an average relative humidity of 75%, are the least humid months.Rainfall
The month with the least rainfall is September, when the rain falls for 12.3 days and typically collects 1.57" (40mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
In September, the average length of the day is 12h and 26min.On the first day of the month, sunrise is at 7:06 am and sunset at 8:07 pm. On the last day of September, sunrise is at 7:32 am and sunset at 7:20 pm EDT.
Sunshine
In Clertoma, Ohio, the average sunshine in September is 8.3h.UV index
The average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 4 in September interprets into the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Clertoma in September?
What is the least humid month?
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?
How many hours of daylight does Clertoma have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Clertoma have in September?
What is the UV index reading in September?
Average temperature in September
Clertoma, OH
- Average high temperature in September: 77°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (35.4°F).
- Average low temperature in September: 58.1°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in September
Clertoma, OH
- Average pressure in September: 30.03"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
Clertoma, OH
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in September
Clertoma, OH
- Average humidity in September: 75%
The months with the highest relative humidity are January, February and December (81%).
The months with the lowest relative humidity are September and October (75%).
Average rainfall in September
Clertoma, OH
- Average rainfall in September: 1.57"
The wettest month (with the highest rainfall) is May (3.07").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in September
Clertoma, OH
- Average rainfall days in September: 12.3 days
The month with the highest number of rainy days is May (18.2 days).
The month with the least rainy days is February (7.9 days).
Average snowfall in September
Clertoma, OH
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.46").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Clertoma, OH
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Clertoma, 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 30min).
- Average sunshine in September: 8h and 2min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in September
Clertoma, OH
- Average sunshine days in September: 16.1 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (10.6 days).
Average UV index in September
Clertoma, OH
- Average UV index in September: 4
The months with the highest UV index are 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
Clertoma, OH
- Average cloud cover in September: 32
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in September
Clertoma, 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).
Clertoma, Ohio, USA
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