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
Transition into October marks a drop in the average high-temperature, moving from a moderately hot 79.3°F (26.3°C) in September to an enjoyable 66.7°F (19.3°C). Throughout the month of October, Swansea expects an average low of 48.9°F (9.4°C).Humidity
The least humid month is October, with an average relative humidity of 71%.Rainfall
In Swansea, in October, it is raining for 10.6 days, with typically 2.95" (75mm) of accumulated precipitation. In Swansea, during the entire year, the rain falls for 147.1 days and collects up to 35.43" (900mm) of precipitation.Snowfall
In Swansea, snow does not fall in April through October.Daylight
The average length of the day in October is 11h and 11min.On the first day of October in Swansea, sunrise is at 6:56 am and sunset at 6:42 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 6:00 pm CDT.
Sunshine
In Swansea, the average sunshine in October is 6.1h.UV index
In Swansea, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In October, a daily maximum UV index of 3 leads to the following instructions:
Be vigilant - Suggestions to stave off sun damage are provided. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October in Swansea?
When it does not snow?
Does it snow in October?
What is the average length of the day in October?
What time are sunrise and sunset in October in Swansea?
How many hours of sunshine does Swansea have in October?
What is the UV index reading in October?
Average temperature in October
Swansea, IL
- Average high temperature in October: 66.7°F
The warmest month (with the highest average high temperature) is July (85.8°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in October: 48.9°F
The month with the highest average low temperature is July (68.4°F).
The coldest month (with the lowest average low temperature) is January (24.8°F).
Average pressure in October
Swansea, IL
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Swansea, IL
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is January (9.4mph).
The calmest month (with the lowest average wind speed) is July (5.6mph).
Average humidity in October
Swansea, IL
- Average humidity in October: 71%
The months with the highest relative humidity are May and July (79%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Swansea, IL
- Average rainfall in October: 2.95"
The wettest month (with the highest rainfall) is May (4.37").
The driest month (with the least rainfall) is February (1.93").
Average rainfall days in October
Swansea, IL
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is May (16.4 days).
The month with the least rainy days is January (6.8 days).
Average snowfall in October
Swansea, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (2.4").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Swansea, IL
- Average snowfall days in October: 0.1 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 and August (0 days).
Average daylight in October /
Average sunshine in October
Swansea, IL
- 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 30min).
Average sunshine days in October
Swansea, IL
- Average sunshine days in October: 18.3 days
The month with the most sunshine days is October (18.3 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in October
Swansea, IL
- Average UV index in October: 3
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 and December (UV index 2).
Average cloud cover in October
Swansea, IL
- Average cloud cover in October: 34
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in October
Swansea, IL
- Average visibility in October: 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).
Swansea, Illinois, USA
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