October weather forecastSaint Charles, MO
October
Weather in October
October, like September, in Saint Charles, Missouri, is another refreshing autumn month, with an average temperature fluctuating between 49.5°F (9.7°C) and 66°F (18.9°C).Temperature
October shows a mild decline in the average high-temperature, falling from September's warm 79.7°F (26.5°C) to a refreshing 66°F (18.9°C). Throughout October nights, Saint Charles experiences a consistent temperature average of 49.5°F (9.7°C).Humidity
The least humid month is October, with an average relative humidity of 70%.Rainfall
In Saint Charles, in October, it is raining for 10.3 days, with typically 2.24" (57mm) of accumulated precipitation. In Saint Charles, Missouri, during the entire year, the rain falls for 141.9 days and collects up to 27.68" (703mm) of precipitation.Snowfall
In Saint Charles, snow does not fall in April through October.Daylight
The average length of the day in October is 11h and 10min.On the first day of the month, sunrise is at 6:58 am and sunset at 6:44 pm. On the last day of October, sunrise is at 7:28 am and sunset at 6:02 pm CDT.
Sunshine
In Saint Charles, Missouri, the average sunshine in October is 6.2h.UV index
In Saint Charles, the average daily maximum UV index in October is 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: A daily high UV index of 3 in October leads to these guidelines:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. 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
Average temperature in October
Saint Charles, MO
- Average high temperature in October: 66°F
The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is January (37.2°F).
- Average low temperature in October: 49.5°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 (24.3°F).
Average pressure in October
Saint Charles, MO
- Average pressure in October: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in October
Saint Charles, MO
- Average wind speed in October: 7.9mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.6mph).
Average humidity in October
Saint Charles, MO
- Average humidity in October: 70%
The month with the highest relative humidity is May (77%).
The month with the lowest relative humidity is October (70%).
Average rainfall in October
Saint Charles, MO
- Average rainfall in October: 2.24"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (1.42").
Average rainfall days in October
Saint Charles, MO
- Average rainfall days in October: 10.3 days
The month with the highest number of rainy days is July (16.3 days).
The months with the least rainy days are February and December (7.3 days).
Average snowfall in October
Saint Charles, MO
- Average snowfall in October: 0"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in October
Saint Charles, MO
- Average snowfall days in October: 0.1 days
The month with the highest number of snowfall days is January (6.8 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
Saint Charles, MO
- Average daylight in October: 11h and 12min
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 30min).
- Average sunshine in October: 6h and 12min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in October
Saint Charles, MO
- Average sunshine days in October: 19.2 days
The month with the most sunshine days is October (19.2 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in October
Saint Charles, 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, February and December (UV index 2).
Average cloud cover in October
Saint Charles, MO
- Average cloud cover in October: 32
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in October
Saint Charles, 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).
