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 onset of October comes with a shift in the average high-temperature, falling from a warm 79.3°F (26.3°C) in September to a comfortable 66.7°F (19.3°C). In October, the temperature drops to an average of 48.9°F (9.4°C) at night.Humidity
With an average relative humidity of 71%, October is the least humid month.Rainfall
In Swansea, in October, during 10.6 rainfall days, 2.95" (75mm) of precipitation is typically accumulated. Throughout the year, in Swansea, there are 147.1 rainfall days, and 35.43" (900mm) of precipitation is accumulated.Snowfall
In Swansea, snow does not fall in April through October.Daylight
In October, the average length of the day is 11h and 11min.On the first day of the month, sunrise is at 6:56 am and sunset at 6:42 pm. On the last day of October, sunrise is at 7:26 am and sunset at 6:00 pm CDT.
Sunshine
In October, the average sunshine is 6.1h.UV index
The average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 3 during October translates into the following guidance:
Ensure safety - Recommendations to avert sunburn are presented. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for Swansea in October?
What is the least humid month in Swansea?
What is the average humidity in October in Swansea?
How many days does it rain in October in Swansea?
When it does not snow in Swansea?
Does it snow in Swansea in October?
What is the average length of the day in October in Swansea?
What time are sunrise and sunset in October in Swansea?
How long on average sun shines in October in Swansea?
How high is the UV index in October in Swansea?
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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