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
Decatur observes a minor decrease in the average high-temperature with the arrival of October, falling from September's warm 77.5°F (25.3°C) to a comfortable 64.9°F (18.3°C). Throughout October, Decatur anticipates an average low-temperature of 46.9°F (8.3°C).Humidity
The months with the lowest humidity are August through November, with an average relative humidity of 76%.Rainfall
In Decatur, Ohio, in October, it is raining for 12.3 days, with typically 2.17" (55mm) of accumulated precipitation. Throughout the year, there are 171.5 rainfall days, and 32.6" (828mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.2 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 33.5 snowfall days, and 9.41" (239mm) of snow is accumulated.Daylight
In Decatur, the average length of the day in October is 11h and 10min.On the first day of October in Decatur, Ohio, sunrise is at 7:31 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 8:01 am and sunset at 6:35 pm EDT.
Sunshine
In Decatur, the average sunshine in October is 6.5h.UV index
In Decatur, Ohio, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 3 in October translates into the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be advised! The UV radiation from the Sun can be almost doubled due to the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Decatur in October?
What are the least humid months in Decatur?
What is the average humidity in October in Decatur?
How much does it rain in Decatur in October?
When does it start snowing in Decatur?
What is the average length of the day in October in Decatur?
When is the sunrise / sunset in October in Decatur?
How long on average sun shines in October in Decatur?
What is the UV index reading in October in Decatur?
Average temperature in October
Decatur, OH
- Average high temperature in October: 64.9°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.9°F).
- Average low temperature in October: 46.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (24.1°F).
Average pressure in October
Decatur, OH
- Average pressure in October: 30.05"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in October
Decatur, OH
- Average wind speed in October: 7mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in October
Decatur, OH
- Average humidity in October: 76%
The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September, October and November (76%).
Average rainfall in October
Decatur, OH
- Average rainfall in October: 2.17"
The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (1.81").
Average rainfall days in October
Decatur, OH
- Average rainfall days in October: 12.3 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in October
Decatur, OH
- Average snowfall in October: 0.12"
The month with the highest snowfall is February (2.4").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Decatur, OH
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Decatur, OH
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in October: 6h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Decatur, OH
- Average sunshine days in October: 17.5 days
The month with the most sunshine days is October (17.5 days).
The months with the least sunshine days are May and June (9.8 days).
Average UV index in October
Decatur, OH
- Average UV index in October: 3
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 October
Decatur, OH
- Average cloud cover in October: 37
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility in October
Decatur, OH
- Average visibility in October: 6mi
The months with the highest visibility are March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, May and July (5mi).
Decatur, Ohio, USA
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