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 commencement of October involves a temperature shift, with the average high-temperature dropping from a moderately hot 75.4°F (24.1°C) in September to an enjoyable 61.3°F (16.3°C). In the month of October, the nighttime temperature in Altona dips to a steady average of 45.5°F (7.5°C).Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
In Altona, Illinois, in October, it is raining for 11 days, with typically 1.69" (43mm) of accumulated precipitation. Throughout the year, in Altona, there are 127.7 rainfall days, and 17.8" (452mm) 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 0.6 snowfall days, it receives 0.55" (14mm) of snow. In Altona, during the entire year, snow falls for 35.5 days and aggregates up to 7.95" (202mm) of snow.Daylight
In October, the average length of the day in Altona is 11h and 5min.On the first day of the month, sunrise is at 6:58 am and sunset at 6:42 pm. On the last day of October, in Altona, sunrise is at 7:31 am and sunset at 5:57 pm CDT.
Sunshine
In October, the average sunshine in Altona, Illinois, is 5.6h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 3 during October, leads to the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature in Altona?
What is the least humid month in Altona?
What is the average humidity in October in Altona?
How much does it rain in Altona in October?
When does it start snowing in Altona?
What is the average length of the day in October in Altona?
When is the sunrise / sunset in October in Altona?
How long on average sun shines in October in Altona?
What is the UV index intensity in October in Altona?
Average temperature in October
Altona, IL
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in October: 45.5°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 (16.5°F).
Average pressure in October
Altona, IL
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in October
Altona, IL
- Average wind speed in October: 9.5mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is August (6.6mph).
Average humidity in October
Altona, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Altona, IL
- Average rainfall in October: 1.69"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is December (0.71").
Average rainfall days in October
Altona, IL
- Average rainfall days in October: 11 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (4 days).
Average snowfall in October
Altona, IL
- Average snowfall in October: 0.55"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in October
Altona, IL
- Average snowfall days in October: 0.6 days
The month with the highest number of snowfall days is January (10.5 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
Altona, IL
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 5h and 4min
The months with the most sunshine are June and July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in October
Altona, IL
- Average sunshine days in October: 17.6 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in October
Altona, IL
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in October
Altona, IL
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in October
Altona, IL
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
Altona, Illinois, USA
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