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
October comes with a decrease in the average high-temperature, falling from a moderately hot 81.9°F (27.7°C) in September to a pleasant 69.1°F (20.6°C). During October, the temperature in Alton is averaged to a low of 49.8°F (9.9°C) at night.Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
In Alton, during October, the rain falls for 10.8 days and regularly aggregates up to 2.91" (74mm) of precipitation. In Alton, during the entire year, the rain falls for 148 days and collects up to 35.39" (899mm) of precipitation.Snowfall
May through October are months without snowfall in Alton, Missouri.Daylight
The average length of the day in October in Alton is 11h and 14min.On the first day of the month, sunrise is at 7:01 am and sunset at 6:48 pm. On the last day of October, sunrise is at 7:28 am and sunset at 6:09 pm CDT.
Sunshine
The average sunshine in October is 5.9h.UV index
The average daily maximum UV index in October in Alton is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The average daily UV index of 3 in October transforms into the following instructions:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Frequently asked questions
What is the usual temperature for Alton in October?
What is the least humid month in Alton?
What is the average humidity in October in Alton?
How many days does it rain in October in Alton?
When it does not snow in Alton?
Does it snow in Alton in October?
What is the average length of the day in October in Alton?
When are sunrise and sunset in October in Alton?
How many hours of sunshine does Alton have in October?
What is the UV index intensity in October in Alton?
Average temperature in October
Alton, MO
- Average high temperature in October: 69.1°F
The warmest month (with the highest average high temperature) is July (89.4°F).
The month with the lowest average high temperature is January (43.3°F).
- Average low temperature in October: 49.8°F
The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).
Average pressure in October
Alton, MO
- 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 (29.93"Hg).
Average wind speed in October
Alton, MO
- Average wind speed in October: 6.9mph
The windiest months (with the highest average wind speed) are January, February, March and April (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.3mph).
Average humidity in October
Alton, MO
- Average humidity in October: 72%
The months with the highest relative humidity are March and May (79%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Alton, MO
- Average rainfall in October: 2.91"
The wettest month (with the highest rainfall) is May (4.25").
The driest month (with the least rainfall) is September (1.57").
Average rainfall days in October
Alton, MO
- Average rainfall days in October: 10.8 days
The month with the highest number of rainy days is May (16.5 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in October
Alton, MO
- Average snowfall in October: 0"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in October
Alton, MO
- Average snowfall days in October: 0 days
The month with the highest number of snowfall days is February (2.8 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
Alton, MO
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in October
Alton, MO
- Average sunshine days in October: 18.7 days
The month with the most sunshine days is December (19.6 days).
The month with the least sunshine days is May (12.3 days).
Average UV index in October
Alton, MO
- Average UV index in October: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in October
Alton, MO
- Average cloud cover in October: 33
The month with the most cloud cover is March (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 29).
Average visibility in October
Alton, MO
- Average visibility in October: 6mi
The months with the highest visibility are January, February, March, April, June, August, September, October, November and December (6mi).
The months with the lowest visibility are May and July (5mi).
Alton, Missouri, USA
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