September weather forecast
Dalton Gardens, ID

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Weather in September

The first month of the autumn, September, is also an agreeable month in Dalton Gardens, Idaho, with an average temperature varying between 45°F (7.2°C) and 71.4°F (21.9°C).

Temperature

Transition from August to September is accompanied by a temperature drop, with average high-temperatures decreasing from a moderately hot 82°F (27.8°C) to an agreeable 71.4°F (21.9°C). Dalton Gardens reports a considerable drop from daytime temperatures in September, recording an average nighttime figure of 45°F (7.2°C).

Humidity

In September, the average relative humidity is 58%.

Rainfall

In Dalton Gardens, during September, the rain falls for 8.4 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Dalton Gardens, Idaho, during the entire year, the rain falls for 141.2 days and collects up to 22.6" (574mm) of precipitation.

Snowfall

January through May, September through December are months with snowfall in Dalton Gardens. September is the first month it typically snows in Dalton Gardens. Throughout September, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow. In Dalton Gardens, during the entire year, snow falls for 71.8 days and aggregates up to 56.54" (1436mm) of snow.

Daylight

In September, the average length of the day in Dalton Gardens is 12h and 33min.
On the first day of the month, sunrise is at 6:06 am and sunset at 7:26 pm. On the last day of September, in Dalton Gardens, sunrise is at 6:45 am and sunset at 6:27 pm PDT.

Sunshine

In September, the average sunshine in Dalton Gardens is 9.8h.

UV index

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, a regular UV index of 4 translates into these guidelines:
Ensure safety - Imperative it is to shield skin and eyes from damage. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. To cut down UV radiation exposure by about half, sport a wide-brim hat. Be mindful! The reflection from snow can increase the Sun's UV radiation nearly twice.
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Frequently asked questions

What are the temperatures in Dalton Gardens in September?

In Dalton Gardens, in September, the average high-temperature is 71.4°F (21.9°C), and the average low-temperature is 45°F (7.2°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is computed to be 82.4°F (28°C).

What is the average humidity in September in Dalton Gardens?

In Dalton Gardens, Idaho, the average relative humidity in September is 58%.

How many days does it rain in September in Dalton Gardens?

In Dalton Gardens, in September, it is raining for 8.4 days, with typically 0.79" (20mm) of accumulated precipitation.

When does it start snowing in Dalton Gardens?

September is the first month it typically snows in Dalton Gardens. Throughout September, in the average 0.2 snowfall days, it receives 0.31" (8mm) of snow.

How many hours of daylight does Dalton Gardens have in September?

The average day length in September is 12h and 33min.

When are sunrise and sunset in September in Dalton Gardens?

In September, on the first day of the month, sunrise is at 6:06 am and sunset at 7:26 pm. On the last day of the month, in Dalton Gardens, sunrise is at 6:45 am and sunset at 6:27 pm PDT.

How long on average sun shines in September in Dalton Gardens?

The average sunshine duration in September in Dalton Gardens is 9.8h.

What is the UV index intensity in September in Dalton Gardens?

In Dalton Gardens, Idaho, the average daily maximum UV index in September is 4. 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 September
Dalton Gardens, ID

Average temperature in September - Dalton Gardens, ID
  • Average high temperature in September: 71.4°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (31.3°F).

  • Average low temperature in September: 45°F

The month with the highest average low temperature is August (51.8°F).
The coldest month (with the lowest average low temperature) is December (21.2°F).

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Average pressure in September
Dalton Gardens, ID

Average pressure in September - Dalton Gardens, ID
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.19"Hg).
The month with the lowest atmospheric pressure is August (29.91"Hg).

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Average wind speed in September
Dalton Gardens, ID

Average wind speed in September - Dalton Gardens, ID
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is April (5mph).
The calmest month (with the lowest average wind speed) is December (3.9mph).

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Average humidity in September
Dalton Gardens, ID

Average humidity in September - Dalton Gardens, ID
  • Average humidity in September: 58%

The month with the highest relative humidity is January (93%).
The month with the lowest relative humidity is August (48%).

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Average rainfall in September
Dalton Gardens, ID

Average rainfall in September - Dalton Gardens, ID
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is January (3.27").
The driest months (with the least rainfall) are July and August (0.43").

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Average rainfall days in September
Dalton Gardens, ID

Average rainfall days in September - Dalton Gardens, ID
  • Average rainfall days in September: 8.4 days

The month with the highest number of rainy days is March (17.5 days).
The month with the least rainy days is August (5.6 days).

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Average snowfall in September
Dalton Gardens, ID

Average snowfall in September - Dalton Gardens, ID
  • Average snowfall in September: 0.31"

The month with the highest snowfall is January (16.57").
The months with the least snowfall are June, July and August (0").

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Average snowfall days in September
Dalton Gardens, ID

Average snowfall days in September - Dalton Gardens, ID
  • Average snowfall days in September: 0.2 days

The month with the highest number of snowfall days is December (16.9 days).
The months with the least snowfall days are June, July and August (0 days).

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Average daylight in September /
Average sunshine in September
Dalton Gardens, ID

Average daylight in September / Average sunshine in September - Dalton Gardens, ID
  • Average daylight in September: 12h and 3min

The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).

  • Average sunshine in September: 9h and 5min

The month with the most sunshine is August (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).

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Average sunshine days in September
Dalton Gardens, ID

Average sunshine days in September - Dalton Gardens, ID
  • Average sunshine days in September: 19.8 days

The month with the most sunshine days is July (23.9 days).
The month with the least sunshine days is February (8.6 days).

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Average UV index in September
Dalton Gardens, ID

Average UV index in September - Dalton Gardens, ID
  • Average UV index in September: 4

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

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Average cloud cover in September
Dalton Gardens, ID

Average cloud cover in September - Dalton Gardens, ID
  • Average cloud cover in September: 23

The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in September
Dalton Gardens, ID

Average visibility in September - Dalton Gardens, ID
  • Average visibility in September: 6mi

The months with the highest visibility are May, June, July, August, September and October (6mi).
The month with the lowest visibility is January (3mi).

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Dalton Gardens, Idaho, USA

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