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
Witnessing a clear downswing, the average high-temperature during October drops from September's warm 74.5°F (23.6°C) to a moderate 59.2°F (15.1°C). In October, Denison experiences a temperature dip to an average of 43.7°F (6.5°C) at night.Humidity
April and October, with an average relative humidity of 68%, are the least humid months in Denison, Iowa.Rainfall
In Denison, in October, it is raining for 10.4 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 123 rainfall days, and 24.72" (628mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall in Denison. October is the first month it typically snows in Denison, Iowa. Throughout October, in the average 0.8 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 36.8 snowfall days, and 14.53" (369mm) of snow is accumulated.Daylight
The average length of the day in October is 11h and 4min.On the first day of October, sunrise is at 7:19 am and sunset at 7:02 pm. On the last day of the month, sunrise is at 7:53 am and sunset at 6:16 pm CDT.
Sunshine
In October, the average sunshine is 5.8h.UV index
In October, the average daily maximum UV index is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In October, the maximum UV index of 3 suggests this advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. 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 are the temperatures in Denison in October?
What are the least humid months in Denison?
What is the average humidity in October in Denison?
How much does it rain in Denison in October?
When does it start snowing in Denison?
What is the average length of the day in October in Denison?
What time are sunrise and sunset in October in Denison?
How long on average sun shines in October in Denison?
How high is the UV index in October in Denison?
Average temperature in October
Denison, IA
- Average high temperature in October: 59.2°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (27°F).
- Average low temperature in October: 43.7°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (14°F).
Average pressure in October
Denison, IA
- Average pressure in October: 30"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in October
Denison, IA
- Average wind speed in October: 9.9mph
The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in October
Denison, IA
- Average humidity in October: 68%
The month with the highest relative humidity is January (83%).
The months with the lowest relative humidity are April and October (68%).
Average rainfall in October
Denison, IA
- Average rainfall in October: 2.09"
The wettest month (with the highest rainfall) is May (3.82").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in October
Denison, IA
- Average rainfall days in October: 10.4 days
The month with the highest number of rainy days is June (16.5 days).
The month with the least rainy days is February (3 days).
Average snowfall in October
Denison, IA
- Average snowfall in October: 0.12"
The month with the highest snowfall is February (3.43").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Denison, IA
- Average snowfall days in October: 0.8 days
The month with the highest number of snowfall days is January (10.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Denison, IA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in October: 5h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in October
Denison, IA
- Average sunshine days in October: 18.8 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is June (11.9 days).
Average UV index in October
Denison, IA
- Average UV index in October: 3
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is February (UV index 1).
Average cloud cover in October
Denison, IA
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in October
Denison, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Denison, Iowa, USA
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