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 pleasant 71.1°F (21.7°C) to a refreshing 56.3°F (13.5°C). During the nights in October, Dorchester observes an average low-temperature of 40.3°F (4.6°C).Humidity
With an average relative humidity of 76%, October is the least humid month.Rainfall
In Dorchester, during October, the rain falls for 10.7 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Dorchester, during the entire year, the rain falls for 130.5 days and collects up to 26.5" (673mm) 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 1.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, there are 51.4 snowfall days, and 22.2" (564mm) of snow is accumulated.Daylight
The average length of the day in October in Dorchester is 11h and 0min.On the first day of October, sunrise is at 7:04 am and sunset at 6:46 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:58 pm CDT.
Sunshine
In October, the average sunshine is 5.2h.UV index
In Dorchester, the average daily maximum UV index in October is 2. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 2 during October leads to these advisories:
While extended sun exposure does not significantly affect most people, those with sensitive skin, children, and infants should always be protected. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Keep in mind! Snow's reflective quality can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average October temperature?
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 snowing?
How many hours of daylight does Dorchester have in October?
When is the sunrise / sunset in October?
How long on average sun shines in October?
How high is the UV index in October?
Average temperature in October
Dorchester, IA
- Average high temperature in October: 56.3°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (21.7°F).
- Average low temperature in October: 40.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (8.8°F).
Average pressure in October
Dorchester, IA
- Average pressure in October: 29.99"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in October
Dorchester, IA
- Average wind speed in October: 8.8mph
The windiest month (with the highest average wind speed) is April (9.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.5mph).
Average humidity in October
Dorchester, IA
- Average humidity in October: 76%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (76%).
Average rainfall in October
Dorchester, IA
- Average rainfall in October: 2.01"
The wettest month (with the highest rainfall) is June (4.61").
The driest month (with the least rainfall) is January (0.87").
Average rainfall days in October
Dorchester, IA
- Average rainfall days in October: 10.7 days
The month with the highest number of rainy days is June (18 days).
The month with the least rainy days is February (3 days).
Average snowfall in October
Dorchester, IA
- Average snowfall in October: 0.12"
The month with the highest snowfall is February (5.71").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in October
Dorchester, IA
- Average snowfall days in October: 1.1 days
The month with the highest number of snowfall days is January (12 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in October /
Average sunshine in October
Dorchester, IA
- Average daylight in October: 11h and 0min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in October: 5h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in October
Dorchester, IA
- Average sunshine days in October: 17.5 days
The month with the most sunshine days is January (17.7 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in October
Dorchester, IA
- Average UV index in October: 2
The month with the highest UV index is 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
Dorchester, IA
- Average cloud cover in October: 42
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
Dorchester, IA
- Average visibility in October: 6mi
The months with the highest visibility are April, May, June, October and November (6mi).
The months with the lowest visibility are January, February, March, July, August, September and December (5mi).
Dorchester, Iowa, USA
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