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 changeover to October signals a significant decrease in the average high-temperature, dropping from a moderately hot 75.7°F (24.3°C) in September to an enjoyable 61.3°F (16.3°C). An average low-temperature of 44.6°F (7°C) is recorded in the month of October in Derby.Humidity
The least humid month is October, with an average relative humidity of 72%.Rainfall
In Derby, in October, during 10.5 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. Throughout the year, in Derby, there are 131.1 rainfall days, and 25.71" (653mm) of precipitation is accumulated.Snowfall
Months with snowfall in Derby are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 0.6 snowfall days, it receives 0.35" (9mm) of snow. In Derby, during the entire year, snow falls for 33.4 days and aggregates up to 13.54" (344mm) of snow.Daylight
The average length of the day in October is 11h and 6min.On the first day of the month, sunrise is at 7:11 am and sunset at 6:55 pm. On the last day of October, sunrise is at 7:44 am and sunset at 6:10 pm CDT.
Sunshine
In October, the average sunshine in Derby, Iowa, is 5.6h.UV index
In Derby, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In October, an average UV index of 2 transforms into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Derby in October?
What is the least humid month in Derby?
What is the average humidity in October in Derby?
How many days does it rain in October in Derby?
When does it start snowing in Derby?
What is the average length of the day in October in Derby?
When is the sunrise / sunset in October in Derby?
How many hours of sunshine does Derby have in October?
What is the UV index intensity in October in Derby?
Average temperature in October
Derby, IA
- Average high temperature in October: 61.3°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (29.3°F).
- Average low temperature in October: 44.6°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (16°F).
Average pressure in October
Derby, IA
- Average pressure in October: 30.01"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Derby, IA
- Average wind speed in October: 9.6mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in October
Derby, IA
- Average humidity in October: 72%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (72%).
Average rainfall in October
Derby, IA
- Average rainfall in October: 2.05"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in October
Derby, IA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in October
Derby, IA
- Average snowfall in October: 0.35"
The month with the highest snowfall is February (4.13").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Derby, IA
- Average snowfall days in October: 0.6 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
Derby, IA
- Average daylight in October: 11h and 1min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in October: 5h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in October
Derby, IA
- Average sunshine days in October: 18 days
The month with the most sunshine days is November (19.3 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in October
Derby, IA
- Average UV index in October: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in October
Derby, IA
- Average cloud cover in October: 36
The month with the most cloud cover is January (Cloud cover 54).
The months with the least cloud cover are July and August (Cloud cover 30).
Average visibility in October
Derby, IA
- Average visibility in October: 6mi
The months with the highest visibility are February, March, April, May, June, July, September, October, November and December (6mi).
The months with the lowest visibility are January and August (5mi).
Derby, Iowa, USA
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