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
October suggests a modest reduction in the average high-temperature, shifting from an agreeable 71.2°F (21.8°C) in September to a moderate 58.6°F (14.8°C). During the month of October, Deerfield's nighttime temperature lowers to an average of 47.7°F (8.7°C).Humidity
The least humid month is October, with an average relative humidity of 73%.Rainfall
In Deerfield, in October, it is raining for 14.7 days, with typically 2.64" (67mm) of accumulated precipitation. In Deerfield, during the entire year, the rain falls for 154.1 days and collects up to 30.24" (768mm) of precipitation.Snowfall
Months with snowfall in Deerfield are January through April, October through December. October is the first month it typically snows in Deerfield. Throughout October, in the average 0.5 snowfall days, it receives 0.12" (3mm) of snow. In Deerfield, during the entire year, snow falls for 42.9 days and aggregates up to 13.82" (351mm) of snow.Daylight
In October, the average length of the day in Deerfield, Illinois, is 11h and 3min.On the first day of the month, sunrise is at 6:49 am and sunset at 6:32 pm. On the last day of October, sunrise is at 7:24 am and sunset at 5:45 pm CDT.
Sunshine
In October, the average sunshine is 5.7h.UV index
The average daily maximum UV index in October in Deerfield is 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 2 in October converts into the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. It's recommended to limit sun exposure when its radiation is at its peak during midday. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Frequently asked questions
What are the temperatures in Deerfield in October?
What is the least humid month in Deerfield?
What is the average humidity in October in Deerfield?
How much does it rain in Deerfield in October?
When does it start snowing in Deerfield?
What is the average length of the day in October in Deerfield?
When are sunrise and sunset in October in Deerfield?
How long on average sun shines in October in Deerfield?
How high is the UV index in October in Deerfield?
Average temperature in October
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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 daylight in October /
Average sunshine in October
Deerfield, IL
- Average daylight in October: 11h and 1min
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 12min).
- 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
Deerfield, 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
Deerfield, 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
Deerfield, 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
Deerfield, 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).
Deerfield, Illinois, USA
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