October weather forecastArmstrong, IL
October
Weather in October
October, like September, in Armstrong, Illinois, is another refreshing autumn month, with temperature in the range of an average low of 46.9°F (8.3°C) and an average high of 62.8°F (17.1°C).Temperature
Onset of October comes with a temperature decline, the average high falling from a warm 75.6°F (24.2°C) in September to an enjoyable 62.8°F (17.1°C). Throughout October, Armstrong witnesses a nighttime temperature average of 46.9°F (8.3°C).Humidity
With an average relative humidity of 72%, October is the least humid month.Rainfall
In Armstrong, during October, the rain falls for 11.9 days and regularly aggregates up to 1.73" (44mm) of precipitation. Throughout the year, there are 146.3 rainfall days, and 22.76" (578mm) of precipitation is accumulated.Snowfall
In Armstrong, snow does not fall in May through October.Daylight
The average length of the day in October is 11h and 7min.On the first day of October, sunrise is at 6:48 am and sunset at 6:33 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 5:49 pm CDT.
Sunshine
In Armstrong, the average sunshine in October is 6.2h.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 unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 3 in October suggests the following recommendations:
Act with care - The need to guard against sun damage is communicated. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Armstrong, IL
- Average high temperature in October: 62.8°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 (31.5°F).
- Average low temperature in October: 46.9°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).
Average pressure in October
Armstrong, 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 (29.93"Hg).
Average wind speed in October
Armstrong, IL
- Average wind speed in October: 9.2mph
The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6.3mph).
Average humidity in October
Armstrong, IL
- Average humidity in October: 72%
The month with the highest relative humidity is July (85%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Armstrong, IL
- Average rainfall in October: 1.73"
The wettest month (with the highest rainfall) is May (2.76").
The driest month (with the least rainfall) is February (1.18").
Average rainfall days in October
Armstrong, IL
- Average rainfall days in October: 11.9 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is February (6.7 days).
Average snowfall in October
Armstrong, IL
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Armstrong, IL
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (9.8 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
Armstrong, IL
- Average daylight in October: 11h and 6min
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 12min
The month with the most sunshine is June (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in October
Armstrong, IL
- Average sunshine days in October: 17.1 days
The month with the most sunshine days is November (18.7 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in October
Armstrong, IL
- Average UV index in October: 3
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
Armstrong, IL
- Average cloud cover in October: 38
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are June, August and September (Cloud cover 33).
Average visibility in October
Armstrong, 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).
