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
The commencement of October indicates a shift in the average high-temperature, receding from September's moderately hot 73.8°F (23.2°C) to an enjoyable 61.7°F (16.5°C). In October, the nighttime temperature lowers to an average of 45.9°F (7.7°C).Humidity
October is the least humid month, with an average relative humidity of 74%.Rainfall
In Decatur, in October, during 12.6 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Decatur, during the entire year, the rain falls for 159.4 days and collects up to 23.74" (603mm) of precipitation.Snowfall
Months with snowfall are January through April, October through December. October is the first month it typically snows. Throughout October, in the average 0.3 snowfall days, it receives 0.04" (1mm) of snow. In Decatur, during the entire year, snow falls for 48.4 days and aggregates up to 10.47" (266mm) of snow.Daylight
The average length of the day in October is 11h and 6min.On the first day of the month, sunrise is at 7:37 am and sunset at 7:21 pm. On the last day of October, sunrise is at 8:09 am and sunset at 6:36 pm EDT.
Sunshine
In October, the average sunshine is 6.2h.UV index
In Decatur, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 2 during October translates into the following directions:
Most individuals can handle sun exposure for up to an hour without burning, but children must always be shielded from sun exposure. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
What is the UV index intensity in October?
Average temperature in October
Decatur, IN
- Average high temperature in October: 61.7°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in October: 45.9°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in October
Decatur, IN
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
Decatur, IN
- Average wind speed in October: 8.8mph
The windiest month (with the highest average wind speed) is January (10.6mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in October
Decatur, IN
- Average humidity in October: 74%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in October
Decatur, IN
- Average rainfall in October: 1.57"
The wettest month (with the highest rainfall) is May (3.03").
The driest month (with the least rainfall) is February (1.34").
Average rainfall days in October
Decatur, IN
- Average rainfall days in October: 12.6 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is February (7.5 days).
Average snowfall in October
Decatur, IN
- Average snowfall in October: 0.04"
The month with the highest snowfall is February (2.83").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Decatur, IN
- Average snowfall days in October: 0.3 days
The month with the highest number of snowfall days is January (13.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Decatur, IN
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 6h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in October
Decatur, IN
- Average sunshine days in October: 15.6 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is June (10 days).
Average UV index in October
Decatur, IN
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Decatur, IN
- Average cloud cover in October: 40
The month with the most cloud cover is January (Cloud cover 64).
The months with the least cloud cover are July and August (Cloud cover 32).
Average visibility in October
Decatur, IN
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Decatur, Indiana, USA
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