October weather forecast
Fairfax, SD

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Weather in October

October, like September, is another mild autumn month in Fairfax, South Dakota, with an average temperature ranging between max 59.7°F (15.4°C) and min 42.4°F (5.8°C).

Temperature

October's arrival brings a noticeable temperature shift, dropping from a warm 76.3°F (24.6°C) in September to a mild 59.7°F (15.4°C). Fairfax experiences an average nighttime temperature of 42.4°F (5.8°C) in the month of October.

Humidity

The least humid month is October, with an average relative humidity of 62%.

Rainfall

In Fairfax, South Dakota, in October, during 7.7 rainfall days, 1.02" (26mm) of precipitation is typically accumulated. Throughout the year, in Fairfax, South Dakota, there are 104.1 rainfall days, and 14.29" (363mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. October is the first month it typically snows in Fairfax. Throughout October, in the average 0.8 snowfall days, it receives 0.08" (2mm) of snow. Throughout the year, in Fairfax, there are 32.8 snowfall days, and 8.35" (212mm) of snow is accumulated.

Daylight

The average length of the day in October is 11h and 1min.
On the first day of October, sunrise is at 7:33 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 6:28 pm CDT.

Sunshine

In Fairfax, the average sunshine in October is 6.6h.

UV index

In Fairfax, South Dakota, the average daily maximum UV index in October is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum UV index of 3 in October translates into the following recommendations:
Guard yourself - An obligation to protect skin and eyes from harm exists. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Updated: Feb 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in Fairfax in October?

In October, in Fairfax, the average high-temperature is 59.7°F (15.4°C), and the average low-temperature is 42.4°F (5.8°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 91.4°F (33°C).

What is the least humid month in Fairfax?

The least humid month in Fairfax, South Dakota, is October, with an average relative humidity of 62%.

What is the average humidity in October in Fairfax?

In Fairfax, the average relative humidity in October is 62%.

How many days does it rain in October in Fairfax?

In Fairfax, in October, it is raining for 7.7 days, with typically 1.02" (26mm) of accumulated precipitation.

When does it start snowing in Fairfax?

October is the first month it typically snows in Fairfax, South Dakota. Throughout October, in the average 0.8 snowfall days, it receives 0.08" (2mm) of snow.

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

In Fairfax, the average day length in October is 11h and 1min.

When are sunrise and sunset in October in Fairfax?

In October, on the first day of the month, sunrise is at 7:33 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 8:09 am and sunset at 6:28 pm CDT.

How long on average sun shines in October in Fairfax?

In October, the average sunshine duration in Fairfax is 6.6h.

What is the UV index intensity in October in Fairfax?

The average daily maximum UV index in October in Fairfax, South Dakota, is 3. A UV Index of 3 to 5 symbolizes a moderate 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
Fairfax, SD

Average temperature in October - Fairfax, SD
  • Average high temperature in October: 59.7°F

The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (27.3°F).

  • Average low temperature in October: 42.4°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 (13.6°F).

Average pressure in October
Fairfax, SD

Average pressure in October - Fairfax, SD
  • Average pressure in October: 29.99"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in October
Fairfax, SD

Average wind speed in October - Fairfax, SD
  • Average wind speed in October: 10.3mph

The windiest month (with the highest average wind speed) is April (11.1mph).
The calmest month (with the lowest average wind speed) is July (8.3mph).

Average humidity in October
Fairfax, SD

Average humidity in October - Fairfax, SD
  • Average humidity in October: 62%

The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (62%).

Average rainfall in October
Fairfax, SD

Average rainfall in October - Fairfax, SD
  • Average rainfall in October: 1.02"

The wettest month (with the highest rainfall) is May (2.72").
The driest month (with the least rainfall) is February (0.31").

Average rainfall days in October
Fairfax, SD

Average rainfall days in October - Fairfax, SD
  • Average rainfall days in October: 7.7 days

The month with the highest number of rainy days is May (15.3 days).
The month with the least rainy days is January (2.9 days).

Average snowfall in October
Fairfax, SD

Average snowfall in October - Fairfax, SD
  • Average snowfall in October: 0.08"

The months with the highest snowfall are January and March (1.93").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in October
Fairfax, SD

Average snowfall days in October - Fairfax, SD
  • Average snowfall days in October: 0.8 days

The month with the highest number of snowfall days is January (8.2 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in October /
Average sunshine in October
Fairfax, SD

Average daylight in October / Average sunshine in October - Fairfax, SD
  • 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 6min).

  • Average sunshine in October: 6h and 4min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 42min).

Average sunshine days in October
Fairfax, SD

Average sunshine days in October - Fairfax, SD
  • Average sunshine days in October: 20.7 days

The month with the most sunshine days is November (23.4 days).
The month with the least sunshine days is June (12.3 days).

Average UV index in October
Fairfax, SD

Average UV index in October - Fairfax, SD
  • Average UV index in October: 3

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).

Average cloud cover in October
Fairfax, SD

Average cloud cover in October - Fairfax, SD
  • Average cloud cover in October: 30

The month with the most cloud cover is January (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 23).

Average visibility in October
Fairfax, SD

Average visibility in October - Fairfax, SD
  • Average visibility in October: 6mi

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

Fairfax, South Dakota, USA

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