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's arrival signals a significant decrease in average high-temperatures, falling from September's agreeable 72.1°F (22.3°C) to a moderate 57.4°F (14.1°C). Colwell, during October, witnesses an average low-temperature of 42.3°F (5.7°C).Humidity
October is the least humid month, with an average relative humidity of 72%.Rainfall
In Colwell, in October, it is raining for 10.5 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 136.1 rainfall days, and 27.32" (694mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 1.9 snowfall days, it receives 0.2" (5mm) of snow. In Colwell, during the entire year, snow falls for 59.5 days and aggregates up to 25.04" (636mm) of snow.Daylight
In October, the average length of the day is 11h and 1min.On the first day of October, sunrise is at 7:08 am and sunset at 6:50 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 6:03 pm CDT.
Sunshine
The average sunshine in October is 5.3h.UV index
In Colwell, the average daily maximum UV index in October is 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 2 in October translates into these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in October?
What is the least humid month?
What is the average humidity in October?
How many days does it rain in October?
When does it start to snow?
What is the average length of the day in October?
When are sunrise and sunset in October?
How many hours of sunshine does Colwell have in October?
How high is the UV index in October?
Average temperature in October
Colwell, IA
- Average high temperature in October: 57.4°F
The warmest month (with the highest average high temperature) is July (79.2°F).
The month with the lowest average high temperature is January (22.6°F).
- Average low temperature in October: 42.3°F
The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in October
Colwell, IA
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Colwell, IA
- Average wind speed in October: 9.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in October
Colwell, IA
- Average humidity in October: 72%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Colwell, IA
- Average rainfall in October: 2.2"
The wettest month (with the highest rainfall) is June (4.17").
The driest month (with the least rainfall) is January (1.14").
Average rainfall days in October
Colwell, IA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (19.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in October
Colwell, IA
- Average snowfall in October: 0.2"
The month with the highest snowfall is February (6.5").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Colwell, IA
- Average snowfall days in October: 1.9 days
The month with the highest number of snowfall days is January (14.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Colwell, IA
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in October: 5h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in October
Colwell, IA
- Average sunshine days in October: 17.5 days
The month with the most sunshine days is October (17.5 days).
The month with the least sunshine days is June (9.3 days).
Average UV index in October
Colwell, IA
- Average UV index in October: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February and December (UV index 1).
Average cloud cover in October
Colwell, IA
- Average cloud cover in October: 40
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Colwell, IA
- Average visibility in October: 6mi
The months with the highest visibility are March, April, May, June, September, October and November (6mi).
The months with the lowest visibility are January, February, July, August and December (5mi).
Colwell, Iowa, USA
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