September weather forecast
Davis, SD

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Weather in September

The first month of the autumn, September, is still a warm month in Davis, South Dakota, with an average temperature ranging between min 54°F (12.2°C) and max 74.7°F (23.7°C).

Temperature

The commencement of September includes a gentle temperature shift, with the average high-temperature dropping a bit from a warm 81.7°F (27.6°C) in August to a still moderately hot 74.7°F (23.7°C). The average low-temperature of 54°F (12.2°C) is witnessed in Davis, South Dakota, during September.

Humidity

The average relative humidity in September is 70%.

Rainfall

In September, in Davis, the rain falls for 10.5 days. Throughout September, 1.61" (41mm) of precipitation is accumulated. In Davis, South Dakota, during the entire year, the rain falls for 111.7 days and collects up to 17.76" (451mm) of precipitation.

Snowfall

In Davis, snow does not fall in June through September.

Daylight

The average length of the day in September in Davis is 12h and 29min.
On the first day of the month, sunrise is at 6:53 am and sunset at 8:02 pm. On the last day of September, in Davis, sunrise is at 7:25 am and sunset at 7:10 pm CDT.

Sunshine

In Davis, the average sunshine in September is 8.8h.

UV index

The average daily maximum UV index in September in Davis is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Midday is when the Sun's radiation is strongest; avoid prolonged exposure during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
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Frequently asked questions

What are September temperatures in Davis?

In September, the average high-temperature and low-temperature in Davis are 74.7°F (23.7°C) and 54°F (12.2°C) respectively. In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in September in Davis?

The average relative humidity in September is 70%.

How many days does it rain in September in Davis?

In Davis, South Dakota, in September, during 10.5 rainfall days, 1.61" (41mm) of precipitation is typically accumulated.

When it does not snow in Davis?

June through September are months without snowfall.

Does it snow in Davis in September?

In Davis, in September, it doesn't snow. In October, it regularly snows.

What is the average length of the day in September in Davis?

In September, the average day length in Davis is 12h and 29min.

What time are sunrise and sunset in September in Davis?

On the first day of September in Davis, sunrise is at 6:53 am and sunset at 8:02 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:10 pm CDT.

How long on average sun shines in September in Davis?

The average sunshine duration in September is 8.8h.

What is the UV index intensity in September in Davis?

In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Davis, SD

Average temperature in September - Davis, SD
  • Average high temperature in September: 74.7°F

The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (24.3°F).

  • Average low temperature in September: 54°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (10.8°F).

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Average pressure in September
Davis, SD

Average pressure in September - Davis, SD
  • Average pressure in September: 29.98"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).

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Average wind speed in September
Davis, SD

Average wind speed in September - Davis, SD
  • Average wind speed in September: 9.3mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.9mph).

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Average humidity in September
Davis, SD

Average humidity in September - Davis, SD
  • Average humidity in September: 70%

The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (66%).

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Average rainfall in September
Davis, SD

Average rainfall in September - Davis, SD
  • Average rainfall in September: 1.61"

The wettest month (with the highest rainfall) is June (2.91").
The driest months (with the least rainfall) are January, February and November (0.47").

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Average rainfall days in September
Davis, SD

Average rainfall days in September - Davis, SD
  • Average rainfall days in September: 10.5 days

The months with the highest number of rainy days are May and June (16 days).
The month with the least rainy days is February (2.5 days).

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Average snowfall in September
Davis, SD

Average snowfall in September - Davis, SD
  • Average snowfall in September: 0"

The month with the highest snowfall is February (2.64").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in September
Davis, SD

Average snowfall days in September - Davis, SD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (9.5 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Davis, SD

Average daylight in September / Average sunshine in September - Davis, SD
  • Average daylight in September: 12h and 3min

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 September: 8h and 5min

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 12min).

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Average sunshine days in September
Davis, SD

Average sunshine days in September - Davis, SD
  • Average sunshine days in September: 17.5 days

The month with the most sunshine days is November (22.5 days).
The month with the least sunshine days is June (11.5 days).

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Average UV index in September
Davis, SD

Average UV index in September - Davis, SD
  • Average UV index in September: 4

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is November (UV index 1).

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Average cloud cover in September
Davis, SD

Average cloud cover in September - Davis, SD
  • Average cloud cover in September: 28

The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 25).

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Average visibility in September
Davis, SD

Average visibility in September - Davis, SD
  • Average visibility in September: 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).

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Davis, South Dakota, USA

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