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 shift from September to October involves a decrease in the average high-temperature, from a warm 79.3°F (26.3°C) to a comfortable 66.7°F (19.3°C). An average low-temperature of 48°F (8.9°C) is anticipated throughout the nights during October.Humidity
October is the least humid month, with an average relative humidity of 74%.Rainfall
In Alton, during October, the rain falls for 10.4 days and regularly aggregates up to 2.13" (54mm) of precipitation. Throughout the year, there are 160 rainfall days, and 29.45" (748mm) of precipitation is accumulated.Snowfall
January through April, September through December are months with snowfall. In October, it is snowing for 0.2 days. Throughout October, 0.04" (1mm) of snow is accumulated. In Alton, during the entire year, snow falls for 26.8 days and aggregates up to 7.91" (201mm) of snow.Daylight
The average length of the day in October is 11h and 11min.On the first day of October, sunrise is at 7:42 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 6:47 pm EDT.
Sunshine
The average sunshine in October in Alton is 7.1h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a medium health hazard from unsafe exposure to UV radiation for the average person.Note: A daily high UV index of 3 in October leads to these guidelines:
Exercise care. People with light skin might get burns in fewer than 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Alton in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
How many days does it snow in October?
What is the average length of the day in October?
What time are sunrise and sunset in October?
How many hours of sunshine does Alton have in October?
How high is the UV index in October?
Average temperature in October
Alton, IN
- Average high temperature in October: 66.7°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in October: 48°F
The month with the highest average low temperature is July (67.1°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).
Average pressure in October
Alton, IN
- 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 (29.95"Hg).
Average wind speed in October
Alton, IN
- Average wind speed in October: 6.5mph
The windiest months (with the highest average wind speed) are January and February (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in October
Alton, IN
- Average humidity in October: 74%
The months with the highest relative humidity are February and December (80%).
The month with the lowest relative humidity is October (74%).
Average rainfall in October
Alton, IN
- Average rainfall in October: 2.13"
The wettest month (with the highest rainfall) is April (3.31").
The driest month (with the least rainfall) is September (1.61").
Average rainfall days in October
Alton, IN
- Average rainfall days in October: 10.4 days
The month with the highest number of rainy days is May (18.7 days).
The month with the least rainy days is November (9.8 days).
Average snowfall in October
Alton, IN
- Average snowfall in October: 0.04"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are May, June, July and August (0").
Average snowfall days in October
Alton, IN
- Average snowfall days in October: 0.2 days
The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are May, June, July and August (0 days).
Average daylight in October /
Average sunshine in October
Alton, IN
- 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 36min).
- Average sunshine in October: 7h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 24min).
Average sunshine days in October
Alton, IN
- Average sunshine days in October: 19.1 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is May (11.1 days).
Average UV index in October
Alton, IN
- 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
Alton, IN
- Average cloud cover in October: 35
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in October
Alton, IN
- Average visibility in October: 6mi
The months with the highest visibility are March, April, June, August, October and November (6mi).
The months with the lowest visibility are January, February, May, July, September and December (5mi).
Alton, Indiana, USA
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