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 transition into October involves a decrease in the average high-temperature, falling from a moderately hot 79.2°F (26.2°C) in September to a comfortable 66.7°F (19.3°C). October's average low-temperature reading in West Salem settles at a chilly 49.6°F (9.8°C).Humidity
October is the least humid month in West Salem, with an average relative humidity of 70%.Rainfall
In West Salem, in October, during 6.2 rainfall days, 0.83" (21mm) of precipitation is typically accumulated. In West Salem, during the entire year, the rain falls for 109.3 days and collects up to 10.83" (275mm) of precipitation.Snowfall
April through October are months without snowfall.Daylight
In October, the average length of the day in West Salem is 11h and 11min.On the first day of the month, sunrise is at 6:48 am and sunset at 6:34 pm. On the last day of October, sunrise is at 7:18 am and sunset at 5:52 pm CDT.
Sunshine
In October, the average sunshine in West Salem is 6.7h.UV index
In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 3 in October converts into the following recommendations:
Be vigilant - Preventing sunburn is recommended. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
Frequently asked questions
What is the usual temperature for West Salem in October?
What is the least humid month in West Salem?
What is the average humidity in October in West Salem?
How much does it rain in West Salem in October?
When it does not snow in West Salem?
Does it snow in West Salem in October?
How many hours of daylight does West Salem have in October?
When are sunrise and sunset in October in West Salem?
How many hours of sunshine does West Salem have in October?
How high is the UV index in October in West Salem?
Average temperature in October
West Salem, IL
- Average high temperature in October: 66.7°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in October: 49.6°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25°F).
Average pressure in October
West Salem, IL
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in October
West Salem, IL
- Average wind speed in October: 8.6mph
The windiest months (with the highest average wind speed) are January and February (10.1mph).
The calmest month (with the lowest average wind speed) is July (5.9mph).
Average humidity in October
West Salem, IL
- Average humidity in October: 70%
The month with the highest relative humidity is July (80%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
West Salem, IL
- Average rainfall in October: 0.83"
The wettest month (with the highest rainfall) is April (1.3").
The driest month (with the least rainfall) is September (0.47").
Average rainfall days in October
West Salem, IL
- Average rainfall days in October: 6.2 days
The month with the highest number of rainy days is May (14 days).
The month with the least rainy days is January (5.1 days).
Average snowfall in October
West Salem, IL
- Average snowfall in October: 0"
The month with the highest snowfall is January (0.39").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
West Salem, IL
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (3.8 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
West Salem, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in October
West Salem, IL
- Average sunshine days in October: 23.2 days
The month with the most sunshine days is October (23.2 days).
The months with the least sunshine days are May and June (14.3 days).
Average UV index in October
West Salem, 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, November and December (UV index 2).
Average cloud cover in October
West Salem, IL
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 27).
Average visibility in October
West Salem, 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).
West Salem, Illinois, USA
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