October weather forecast
Hartford, SD

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Weather in October

October, like September, is another mild autumn month in Hartford, South Dakota, with an average temperature ranging between min 41.2°F (5.1°C) and max 57.2°F (14°C).

Temperature

A notable decrease in the average high-temperature is observed during October, falling from a warm 74.3°F (23.5°C) in September to a refreshing 57.2°F (14°C). Hartford encounters an average low-temperature of 41.2°F (5.1°C) during October nights.

Humidity

With an average relative humidity of 67%, October is the least humid month.

Rainfall

In Hartford, in October, during 8.5 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 118.3 rainfall days, and 22.76" (578mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.51" (13mm) of snow. Throughout the year, there are 45.4 snowfall days, and 19.33" (491mm) of snow is accumulated.

Daylight

In October, the average length of the day is 11h and 0min.
On the first day of October, sunrise is at 7:26 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 6:19 pm CDT.

Sunshine

The average sunshine in October is 6.1h.

UV index

In October, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the average person.
Note: In October, the UV index of 3 transforms into the following advice:
Prioritize safety - Recommendations to avert sunburn are shared. The mid-day Sun emits the most powerful UV radiation, so seek shade and minimize exposure. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Updated: Jul 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the temperatures in October?

In Hartford, in October, the average high-temperature is 57.2°F (14°C), and the average low-temperature is 41.2°F (5.1°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, in August is computed to be 86°F (30°C).

What is the least humid month?

With an average relative humidity of 67%, October is the least humid month.

What is the average humidity in October in Hartford?

In Hartford, the average relative humidity in October is 67%.

How many days does it rain in October?

In Hartford, in October, it is raining for 8.5 days, with typically 1.77" (45mm) of accumulated precipitation.

When does it start to snow?

October is the first month it typically snows. Throughout October, in the average 1.6 snowfall days, it receives 0.51" (13mm) of snow.

What is the average length of the day in October?

The average day length in October in Hartford, South Dakota, is 11h and 0min.

When is the sunrise / sunset in October?

In October, on the first day of the month, sunrise is at 7:26 am and sunset at 7:08 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 6:19 pm CDT.

How long on average sun shines in October?

In Hartford, the average sunshine duration in October is 6.1h.

What is the UV index reading in October?

The average daily maximum UV index in October is 3. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to 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
Hartford, SD

Average temperature in October - Hartford, SD
  • Average high temperature in October: 57.2°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (22.8°F).

  • Average low temperature in October: 41.2°F

The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (9.3°F).

Average pressure in October
Hartford, SD

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

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

Average wind speed in October
Hartford, SD

Average wind speed in October - Hartford, SD
  • Average wind speed in October: 10.7mph

The windiest month (with the highest average wind speed) is April (11.4mph).
The calmest month (with the lowest average wind speed) is July (8.1mph).

Average humidity in October
Hartford, SD

Average humidity in October - Hartford, SD
  • Average humidity in October: 67%

The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is October (67%).

Average rainfall in October
Hartford, SD

Average rainfall in October - Hartford, SD
  • Average rainfall in October: 1.77"

The wettest month (with the highest rainfall) is June (3.62").
The driest month (with the least rainfall) is February (0.63").

Average rainfall days in October
Hartford, SD

Average rainfall days in October - Hartford, SD
  • Average rainfall days in October: 8.5 days

The month with the highest number of rainy days is June (18.3 days).
The month with the least rainy days is February (2.6 days).

Average snowfall in October
Hartford, SD

Average snowfall in October - Hartford, SD
  • Average snowfall in October: 0.51"

The month with the highest snowfall is December (4.21").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in October
Hartford, SD

Average snowfall days in October - Hartford, SD
  • Average snowfall days in October: 1.6 days

The month with the highest number of snowfall days is January (10.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in October / Average sunshine in October - Hartford, SD
  • 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: 6h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).

Average sunshine days in October
Hartford, SD

Average sunshine days in October - Hartford, SD
  • Average sunshine days in October: 19.5 days

The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (9.2 days).

Average UV index in October
Hartford, SD

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

The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in October
Hartford, SD

Average cloud cover in October - Hartford, SD
  • Average cloud cover in October: 35

The month with the most cloud cover is January (Cloud cover 57).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in October
Hartford, SD

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

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

Hartford, South Dakota, USA

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