October weather forecastMount Vernon, MO
October
Weather in October
October, like September, in Mount Vernon, Missouri, is another enjoyable autumn month, with temperature in the range of an average low of 48.7°F (9.3°C) and an average high of 67.1°F (19.5°C).Temperature
During the transition into October, Mount Vernon observes a decrease in the average high-temperature, falling from a moderately hot 79.9°F (26.6°C) in September to a refreshing 67.1°F (19.5°C). Mount Vernon encounters an average low-temperature of 48.7°F (9.3°C) during October nights.Humidity
January, July, August and October, with an average relative humidity of 73%, are the least humid months.Rainfall
In October, the rain falls for 10.6 days. Throughout October, 2.83" (72mm) of precipitation is accumulated. Throughout the year, there are 155.3 rainfall days, and 35.59" (904mm) of precipitation is accumulated.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in October is 11h and 13min.On the first day of the month, sunrise is at 7:11 am and sunset at 6:58 pm. On the last day of October, in Mount Vernon, sunrise is at 7:39 am and sunset at 6:18 pm CDT.
Sunshine
In Mount Vernon, Missouri, the average sunshine in October is 6.1h.UV index
In October, the average daily maximum UV index is 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: A daily maximum UV index of 3 in October translates into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in October
Mount Vernon, MO
- Average high temperature in October: 67.1°F
The warmest month (with the highest average high temperature) is July (88.7°F).
The month with the lowest average high temperature is January (42.3°F).
- Average low temperature in October: 48.7°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (26.6°F).
Average pressure in October
Mount Vernon, MO
- Average pressure in October: 30.04"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in October
Mount Vernon, MO
- Average wind speed in October: 8.6mph
The windiest months (with the highest average wind speed) are March and April (10.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in October
Mount Vernon, MO
- Average humidity in October: 73%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, July, August and October (73%).
Average rainfall in October
Mount Vernon, MO
- Average rainfall in October: 2.83"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is February (1.69").
Average rainfall days in October
Mount Vernon, MO
- Average rainfall days in October: 10.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (7.3 days).
Average snowfall in October
Mount Vernon, MO
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in October
Mount Vernon, MO
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Mount Vernon, MO
- Average daylight in October: 11h and 12min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in October: 6h and 6min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 5h and 18min).
Average sunshine days in October
Mount Vernon, MO
- Average sunshine days in October: 18.7 days
The month with the most sunshine days is December (20.7 days).
The month with the least sunshine days is July (10.6 days).
Average UV index in October
Mount Vernon, MO
- 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 and December (UV index 2).
Average cloud cover in October
Mount Vernon, MO
- Average cloud cover in October: 31
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 26).
Average visibility in October
Mount Vernon, MO
- 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).





