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
With October's arrival, River Forest sees a decrease in average high-temperatures, moving from a moderately hot 74.5°F (23.6°C) in September to an enjoyable 62.2°F (16.8°C). River Forest, during the month of October, experiences an average low-temperature of 46.6°F (8.1°C).Humidity
The least humid month is October, with an average relative humidity of 74%.Rainfall
In River Forest, in October, during 11 rainfall days, 1.3" (33mm) of precipitation is typically accumulated. Throughout the year, there are 142.1 rainfall days, and 20.91" (531mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. October is the first month it typically snows in River Forest. Throughout October, in the average 0.5 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, there are 34.7 snowfall days, and 8.74" (222mm) of snow is accumulated.Daylight
In River Forest, the average length of the day in October is 11h and 8min.On the first day of October, sunrise is at 7:39 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 6:41 pm EDT.
Sunshine
In October, the average sunshine is 6.6h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily maximum UV index of 2 in October interprets into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October in River Forest?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow?
How many hours of daylight does River Forest have in October?
What time are sunrise and sunset in October?
How long on average sun shines in October?
What are the months with the lowest UV index?
How high is the UV index in October in River Forest?
Average temperature in October
River Forest, IN
- Average high temperature in October: 62.2°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in October: 46.6°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in October
River Forest, IN
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in October
River Forest, IN
- Average wind speed in October: 8.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in October
River Forest, IN
- Average humidity in October: 74%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in October
River Forest, IN
- Average rainfall in October: 1.3"
The wettest month (with the highest rainfall) is May (2.68").
The driest months (with the least rainfall) are February and November (1.14").
Average rainfall days in October
River Forest, IN
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (17.6 days).
The month with the least rainy days is February (6.1 days).
Average snowfall in October
River Forest, IN
- Average snowfall in October: 0.08"
The months with the highest snowfall are February and December (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
River Forest, IN
- Average snowfall days in October: 0.5 days
The month with the highest number of snowfall days is January (10.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
River Forest, IN
- 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in October
River Forest, IN
- Average sunshine days in October: 18.2 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in October
River Forest, IN
- Average UV index in October: 2
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, October, November and December (UV index 2).
Average cloud cover in October
River Forest, IN
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July and August (Cloud cover 32).
Average visibility in October
River Forest, IN
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
River Forest, Indiana, USA
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