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 brings a small change in high-temperatures, falling from a moderately hot 75.9°F (24.4°C) in September to a comfortable 63°F (17.2°C). The average low-temperature, in October, in Dewey, is a frosty 47.1°F (8.4°C).Humidity
October is the least humid month, with an average relative humidity of 71%.Rainfall
In Dewey, during October, the rain falls for 9.5 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Dewey, during the entire year, the rain falls for 115.9 days and collects up to 10.87" (276mm) of precipitation.Snowfall
In Dewey, Illinois, snow does not fall in May through October.Daylight
In October, the average length of the day in Dewey is 11h and 7min.On the first day of the month, sunrise is at 6:50 am and sunset at 6:34 pm. On the last day of October, in Dewey, sunrise is at 7:22 am and sunset at 5:50 pm CDT.
Sunshine
In Dewey, Illinois, the average sunshine in October is 6.1h.UV index
In October, the average daily maximum UV index in Dewey is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 in October interprets into the following recommendations:
Take precautions - Protection against skin and eye damage is obliged. It's recommended to limit sun exposure when its radiation is at its peak during midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
What are the temperatures in Dewey in October?
What is the least humid month in Dewey?
What is the average humidity in October in Dewey?
How many days does it rain in October in Dewey?
When it does not snow in Dewey?
Does it snow in Dewey in October?
What is the average length of the day in October in Dewey?
When is the sunrise / sunset in October in Dewey?
How many hours of sunshine does Dewey have in October?
What is the UV index reading in October in Dewey?
Average temperature in October
Dewey, IL
- Average high temperature in October: 63°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in October: 47.1°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in October
Dewey, IL
- Average pressure in October: 30.02"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Dewey, IL
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is January (10.9mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in October
Dewey, IL
- Average humidity in October: 71%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (71%).
Average rainfall in October
Dewey, IL
- Average rainfall in October: 0.94"
The wettest month (with the highest rainfall) is May (1.46").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in October
Dewey, IL
- Average rainfall days in October: 9.5 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is January (4.5 days).
Average snowfall in October
Dewey, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (1.3").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Dewey, IL
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is January (8.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in October /
Average sunshine in October
Dewey, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in October: 6h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Dewey, IL
- Average sunshine days in October: 20 days
The month with the most sunshine days is November (21.4 days).
The month with the least sunshine days is July (12.3 days).
Average UV index in October
Dewey, IL
- Average UV index in October: 3
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in October
Dewey, IL
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in October
Dewey, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Dewey, Illinois, USA
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