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 is marked by a notable drop in high-temperatures, falling from an agreeable 71.4°F (21.9°C) in September to a mild 56.3°F (13.5°C). During October, the average low-temperature is recorded at a wintry 41.7°F (5.4°C).Humidity
April and October, with an average relative humidity of 72%, are the least humid months.Rainfall
In October, the rain falls for 10.5 days. Throughout October, 1.97" (50mm) of precipitation is accumulated. In Grafton, during the entire year, the rain falls for 134.3 days and collects up to 25.08" (637mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Grafton. October is the first month it typically snows in Grafton. Throughout October, in the average 1.4 snowfall days, it receives 0.24" (6mm) of snow. Throughout the year, there are 57 snowfall days, and 22.83" (580mm) of snow is accumulated.Daylight
In Grafton, the average length of the day in October is 11h and 1min.On the first day of October in Grafton, 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
In October, the average sunshine is 5.4h.UV index
In October, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low threat to health from unsafe exposure to UV radiation for the average person.Note: In October, the UV index of 2 transforms into the following advice:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
What is the usual temperature for Grafton in October?
What are the least humid months in Grafton?
What is the average humidity in October in Grafton?
How much does it rain in Grafton in October?
When does it start snowing in Grafton?
What is the average length of the day in October in Grafton?
When is the sunrise / sunset in October in Grafton?
How many hours of sunshine does Grafton have in October?
What is the UV index reading in October in Grafton?
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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