October weather forecast
Fairfield, IA

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Weather in October

October imprints the full strength of autumn in Fairfield with a notable drop in temperatures. Amidst the fall season, the city witnesses an increase in wind speed to 9.6mph (15.4km/h), stirring up the colorful leaves. Reduced rainfall and dwindling daylight hours give a distinct chill to the air, marking the transition towards winter. The UV index drops to 2, indicating shorter and less intense sunlight hours. The departure of October signals the arrival of November's frost and end-of-fall activities.

Temperature

As October begins, there is a noticeable decrease in the average high-temperature, falling from a moderately hot 76.1°F (24.5°C) in September to an enjoyable 61.7°F (16.5°C). Throughout October, Fairfield's nights cool down to an average of 45.5°F (7.5°C).

Humidity

October is the least humid month in Fairfield, with an average relative humidity of 71%.

Rainfall

In October, in Fairfield, the rain falls for 10.6 days. Throughout October, 2.44" (62mm) of precipitation is accumulated. In Fairfield, during the entire year, the rain falls for 135.6 days and collects up to 28.66" (728mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. October is the first month it typically snows. Throughout October, in the average 0.4 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, in Fairfield, there are 32.1 snowfall days, and 14.33" (364mm) of snow is accumulated.

Daylight

In October, the average length of the day in Fairfield is 11h and 6min.
On the first day of October in Fairfield, sunrise is at 7:05 am and sunset at 6:49 pm. On the last day of the month, sunrise is at 7:38 am and sunset at 6:04 pm CDT.

Sunshine

The average sunshine in October is 5.5h.

UV index

In Fairfield, the average daily maximum UV index in October is 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In October, a daily maximum UV index of 2 leads to the following instructions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
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Frequently asked questions

What is the usual temperature for Fairfield in October?

Fairfield in October has an average high-temperature of 61.7°F (16.5°C) and an average low-temperature of 45.5°F (7.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is computed to be 87.8°F (31°C).

What is the least humid month in Fairfield?

With an average relative humidity of 71%, October is the least humid month.

What is the average humidity in October in Fairfield?

In October, the average relative humidity is 71%.

How many days does it rain in October in Fairfield?

In October, in Fairfield, Iowa, the rain falls for 10.6 days. Throughout October, 2.44" (62mm) of precipitation is accumulated.

When does it start snowing in Fairfield?

October is the first month it typically snows in Fairfield, Iowa. Throughout October, in the average 0.4 snowfall days, it receives 0.51" (13mm) of snow.

What is the average length of the day in October in Fairfield?

The average day length in October in Fairfield is 11h and 6min.

When is the sunrise / sunset in October in Fairfield?

In October, on the first day of the month, sunrise is at 7:05 am and sunset at 6:49 pm. On the last day of the month, in Fairfield, Iowa, sunrise is at 7:38 am and sunset at 6:04 pm CDT.

How long on average sun shines in October in Fairfield?

In October, the average sunshine duration in Fairfield is 5.5h.

What is the UV index intensity in October in Fairfield?

The average daily maximum UV index in October is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in October
Fairfield, IA

Average temperature in October - Fairfield, IA
  • Average high temperature in October: 61.7°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.1°F).

  • Average low temperature in October: 45.5°F

The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (16.5°F).

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Average pressure in October
Fairfield, IA

Average pressure in October - Fairfield, IA
  • Average pressure in October: 30.01"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).

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Average wind speed in October
Fairfield, IA

Average wind speed in October - Fairfield, IA
  • Average wind speed in October: 9.6mph

The windiest month (with the highest average wind speed) is January (10.8mph).
The calmest months (with the lowest average wind speed) are July and August (7mph).

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Average humidity in October
Fairfield, IA

Average humidity in October - Fairfield, IA
  • Average humidity in October: 71%

The months with the highest relative humidity are June and July (82%).
The month with the lowest relative humidity is October (71%).

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Average rainfall in October
Fairfield, IA

Average rainfall in October - Fairfield, IA
  • Average rainfall in October: 2.44"

The wettest month (with the highest rainfall) is May (4.45").
The driest months (with the least rainfall) are January and December (1.18").

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Average rainfall days in October
Fairfield, IA

Average rainfall days in October - Fairfield, IA
  • Average rainfall days in October: 10.6 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is February (4.9 days).

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Average snowfall in October
Fairfield, IA

Average snowfall in October - Fairfield, IA
  • Average snowfall in October: 0.51"

The months with the highest snowfall are January and February (4.33").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in October
Fairfield, IA

Average snowfall days in October - Fairfield, IA
  • Average snowfall days in October: 0.4 days

The month with the highest number of snowfall days is January (10.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in October /
Average sunshine in October
Fairfield, IA

Average daylight in October / Average sunshine in October - Fairfield, 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 3min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).

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Average sunshine days in October
Fairfield, IA

Average sunshine days in October - Fairfield, IA
  • Average sunshine days in October: 18.8 days

The months with the most sunshine days are October and November (18.8 days).
The month with the least sunshine days is May (11 days).

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Average UV index in October
Fairfield, IA

Average UV index in October - Fairfield, 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).

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Average cloud cover in October
Fairfield, IA

Average cloud cover in October - Fairfield, IA
  • Average cloud cover in October: 38

The month with the most cloud cover is January (Cloud cover 55).
The months with the least cloud cover are August and September (Cloud cover 30).

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Average visibility in October
Fairfield, IA

Average visibility in October - Fairfield, IA
  • Average visibility in October: 6mi

The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).

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Fairfield, Iowa, USA

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