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 sea temperature 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 transition into October indicates a reduction in the average high-temperature, down to a refreshing 58.6°F (14.8°C) from September's pleasant 71.2°F (21.8°C). During October, an average low-temperature of 47.7°F (8.7°C) is observed.Humidity
With an average relative humidity of 73%, October is the least humid month.Rainfall
In Lake Bluff, in October, during 14.7 rainfall days, 2.64" (67mm) of precipitation is typically accumulated. Throughout the year, in Lake Bluff, Illinois, there are 154.1 rainfall days, and 30.24" (768mm) 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 0.5 snowfall days, it receives 0.12" (3mm) of snow. In Lake Bluff, during the entire year, snow falls for 42.9 days and aggregates up to 13.82" (351mm) of snow.Ocean temperature
In October, the average ocean temperature is 58.6°F (14.8°C).Note: Immersing oneself in 58.6°F (14.8°C) at sub14°F (-10°C) temperatures is a recipe for harsh cold shock and quickened breathing unless adequately equipped.
Daylight
The average length of the day in October in Lake Bluff is 11h and 3min.On the first day of October, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:45 pm CDT.
Sunshine
In October, the average sunshine is 5.7h.UV index
In October, the average daily maximum UV index in Lake Bluff is 2. A UV Index reading of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.Note: The maximum daily UV index of 2 in October interprets into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The solar radiation around mid-day is intense; avoid the Sun and stay safe. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Frequently asked questions
What is the usual temperature for Lake Bluff in October?
What is the least humid month in Lake Bluff?
What is the average humidity in October in Lake Bluff?
How many days does it rain in October in Lake Bluff?
When does it start to snow in Lake Bluff?
What is the water temperature in October in Lake Bluff?
What is the average length of the day in October in Lake Bluff?
When are sunrise and sunset in October in Lake Bluff?
How long on average sun shines in October in Lake Bluff?
What is the UV index intensity in October in Lake Bluff?
Average temperature in October
Lake Bluff, IL
- Average high temperature in October: 58.6°F
The warmest month (with the highest average high temperature) is July (77.7°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in October: 47.7°F
The months with the highest average low temperature are July and August (66.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in October
Lake Bluff, IL
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Lake Bluff, IL
- Average wind speed in October: 10.7mph
The windiest month (with the highest average wind speed) is January (11.9mph).
The calmest month (with the lowest average wind speed) is August (7.4mph).
Average humidity in October
Lake Bluff, IL
- Average humidity in October: 73%
The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is October (73%).
Average rainfall in October
Lake Bluff, IL
- Average rainfall in October: 2.64"
The wettest months (with the highest rainfall) are May and June (3.82").
The driest month (with the least rainfall) is December (1.3").
Average rainfall days in October
Lake Bluff, IL
- Average rainfall days in October: 14.7 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (5.9 days).
Average snowfall in October
Lake Bluff, IL
- Average snowfall in October: 0.12"
The month with the highest snowfall is January (4.13").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Lake Bluff, IL
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (11.9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average sea temperature in October
Lake Bluff, IL
- Average sea temperature in October: 58.6°F
The best month for swimming (with the highest average sea temperature) is August (73.3°F).
The coldest month (with the lowest average sea temperature) is February (37.1°F).
Average daylight in October /
Average sunshine in October
Lake Bluff, IL
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 5h and 4min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in October
Lake Bluff, IL
- Average sunshine days in October: 13.6 days
The month with the most sunshine days is December (15.3 days).
The month with the least sunshine days is April (10.8 days).
Average UV index in October
Lake Bluff, IL
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in October
Lake Bluff, IL
- Average cloud cover in October: 42
The month with the most cloud cover is January (Cloud cover 61).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in October
Lake Bluff, 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).
Lake Bluff, Illinois, USA
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