September weather forecast
Tuthill, SD

Share

Weather in September

The first month of the autumn, September, is still a warm month in Tuthill, South Dakota, with an average temperature fluctuating between 76.1°F (24.5°C) and 55.8°F (13.2°C).

Temperature

Transition into September subtly marks a drop in the average high-temperature, moderately moving from 84.7°F (29.3°C) in August to a still warm 76.1°F (24.5°C). During the month of September, the temperature falls to an average of 55.8°F (13.2°C).

Humidity

August and September, with an average relative humidity of 51%, are the least humid months in Tuthill.

Rainfall

In Tuthill, in September, it is raining for 9.5 days, with typically 1.22" (31mm) of accumulated precipitation. In Tuthill, during the entire year, the rain falls for 108 days and collects up to 15.39" (391mm) of precipitation.

Snowfall

Months with snowfall in Tuthill are January through May, September through December. September is the first month it typically snows in Tuthill. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow. In Tuthill, during the entire year, snow falls for 47.3 days and aggregates up to 19.76" (502mm) of snow.

Daylight

In Tuthill, the average length of the day in September is 12h and 29min.
On the first day of September, sunrise is at 6:11 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:28 pm MDT.

Sunshine

The average sunshine in September in Tuthill is 10.1h.

UV index

In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 4 during September, leads to the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
[Resources]

Frequently asked questions

What is the usual temperature for Tuthill in September?

Tuthill in September has an average high-temperature of 76.1°F (24.5°C) and an average low-temperature of 55.8°F (13.2°C). In August, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 86°F (30°C).

What is the least humid month in Tuthill?

August and September, with an average relative humidity of 51%, are the least humid months.

What is the average humidity in September in Tuthill?

In Tuthill, South Dakota, the average relative humidity in September is 51%.

How much does it rain in Tuthill in September?

In Tuthill, in September, during 9.5 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

When does it start to snow in Tuthill?

September is the first month it typically snows. Throughout September, in the average 0.2 snowfall days, it receives 0.04" (1mm) of snow.

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

The average day length in September in Tuthill is 12h and 29min.

What time are sunrise and sunset in September in Tuthill?

In September, on the first day of the month, sunrise is at 6:11 am and sunset at 7:20 pm. On the last day of the month, in Tuthill, South Dakota, sunrise is at 6:43 am and sunset at 6:28 pm MDT.

How many hours of sunshine does Tuthill have in September?

The average sunshine duration in September is 10.1h.

What is the UV index reading in September in Tuthill?

The average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from exposure to Sun's UV rays.
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 September
Tuthill, SD

Average temperature in September - Tuthill, SD
  • Average high temperature in September: 76.1°F

The warmest month (with the highest average high temperature) is July (86.7°F).
The month with the lowest average high temperature is December (32°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (18.3°F).

[Resources]

Average pressure in September
Tuthill, SD

Average pressure in September - Tuthill, SD
  • Average pressure in September: 29.94"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

[Resources]

Average wind speed in September
Tuthill, SD

Average wind speed in September - Tuthill, SD
  • Average wind speed in September: 11.5mph

The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (10.4mph).

[Resources]

Average humidity in September
Tuthill, SD

Average humidity in September - Tuthill, SD
  • Average humidity in September: 51%

The month with the highest relative humidity is January (79%).
The months with the lowest relative humidity are August and September (51%).

[Resources]

Average rainfall in September
Tuthill, SD

Average rainfall in September - Tuthill, SD
  • Average rainfall in September: 1.22"

The wettest month (with the highest rainfall) is May (2.4").
The driest month (with the least rainfall) is January (0.47").

[Resources]

Average rainfall days in September
Tuthill, SD

Average rainfall days in September - Tuthill, SD
  • Average rainfall days in September: 9.5 days

The month with the highest number of rainy days is July (15.3 days).
The month with the least rainy days is December (2.8 days).

[Resources]

Average snowfall in September
Tuthill, SD

Average snowfall in September - Tuthill, SD
  • Average snowfall in September: 0.04"

The month with the highest snowfall is March (3.58").
The months with the least snowfall are June, July and August (0").

[Resources]

Average snowfall days in September
Tuthill, SD

Average snowfall days in September - Tuthill, SD
  • Average snowfall days in September: 0.2 days

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

[Resources]

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

Average daylight in September / Average sunshine in September - Tuthill, 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 6min).

  • Average sunshine in September: 10h and 1min

The month with the most sunshine is August (Average sunshine: 11h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 30min).

[Resources]

Average sunshine days in September
Tuthill, SD

Average sunshine days in September - Tuthill, SD
  • Average sunshine days in September: 18.4 days

The month with the most sunshine days is December (21 days).
The month with the least sunshine days is July (11.8 days).

[Resources]

Average UV index in September
Tuthill, SD

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

The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 2).

[Resources]

Average cloud cover in September
Tuthill, SD

Average cloud cover in September - Tuthill, SD
  • Average cloud cover in September: 19

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 17).

[Resources]

Average visibility in September
Tuthill, SD

Average visibility in September - Tuthill, 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).

[Resources]

Tuthill, South Dakota, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location