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 shift into October is marked by a noticeable reduction in the average high-temperature, decreasing from September's agreeable 71.4°F (21.9°C) to a refreshing 56.3°F (13.5°C). During the month of October, the temperature falls to an average of 41.7°F (5.4°C).Humidity
April and October, with an average relative humidity of 72%, are the least humid months in Grafton.Rainfall
In Grafton, Iowa, during October, the rain falls for 10.5 days and regularly aggregates up to 1.97" (50mm) of precipitation. In Grafton, Iowa, during the entire year, the rain falls for 134.3 days and collects up to 25.08" (637mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.4 snowfall days, it receives 0.24" (6mm) of snow. In Grafton, during the entire year, snow falls for 57 days and aggregates up to 22.83" (580mm) of snow.Daylight
In October, the average length of the day is 11h and 1min.On the first day of October, sunrise is at 7:10 am and sunset at 6:52 pm. On the last day of the month, sunrise is at 7:47 am and sunset at 6:04 pm CDT.
Sunshine
The average sunshine in October is 5.4h.UV index
In Grafton, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: A maximum high daily UV index of 2 during October translates into the following directions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Stay sun-safe with clothing that is both closely woven and worn loosely. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in October?
What are the least humid months?
What is the average humidity in October?
How much does it rain in October?
When does it start snowing?
How many hours of daylight does Grafton have in October?
What time are sunrise and sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
Average temperature in October
Grafton, IA
- Average high temperature in October: 56.3°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 (21.6°F).
- Average low temperature in October: 41.7°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 (9°F).
Average pressure in October
Grafton, IA
- Average pressure in October: 29.99"Hg
The months with the highest atmospheric pressure are January and February (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in October
Grafton, IA
- Average wind speed in October: 10mph
The windiest month (with the highest average wind speed) is April (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7.4mph).
Average humidity in October
Grafton, IA
- Average humidity in October: 72%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are April and October (72%).
Average rainfall in October
Grafton, IA
- Average rainfall in October: 1.97"
The wettest month (with the highest rainfall) is June (4.13").
The driest month (with the least rainfall) is January (0.94").
Average rainfall days in October
Grafton, IA
- Average rainfall days in October: 10.5 days
The month with the highest number of rainy days is June (18.4 days).
The month with the least rainy days is February (2.9 days).
Average snowfall in October
Grafton, IA
- Average snowfall in October: 0.24"
The month with the highest snowfall is February (5.94").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Grafton, IA
- Average snowfall days in October: 1.4 days
The month with the highest number of snowfall days is January (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Grafton, 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 0min).
- Average sunshine in October: 5h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in October
Grafton, IA
- Average sunshine days in October: 18.1 days
The month with the most sunshine days is October (18.1 days).
The month with the least sunshine days is June (9.1 days).
Average UV index in October
Grafton, IA
- Average UV index in October: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 1).
Average cloud cover in October
Grafton, IA
- Average cloud cover in October: 40
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in October
Grafton, 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).
Grafton, Iowa, USA
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