September weather forecast
Mapleton, OR

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Weather in September

The first month of the autumn, September, is still a comfortable month in Mapleton, Oregon, with temperature in the range of an average low of 52.3°F (11.3°C) and an average high of 66.2°F (19°C).

Temperature

The shift to September signals an average high-temperature of a refreshing 66.2°F (19°C), subtly varied from August's 68.2°F (20.1°C). An average low-temperature of 52.3°F (11.3°C) marks the month of September in Mapleton.

Humidity

The months with the lowest humidity in Mapleton are April through July, September and October, with an average relative humidity of 81%.

Rainfall

In Mapleton, in September, during 6.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. In Mapleton, during the entire year, the rain falls for 131.8 days and collects up to 20.63" (524mm) of precipitation.

Snowfall

In Mapleton, snow does not fall in March through October and December.

Daylight

The average length of the day in September in Mapleton is 12h and 29min.
On the first day of the month, sunrise is at 6:39 am and sunset at 7:50 pm. On the last day of September, in Mapleton, sunrise is at 7:12 am and sunset at 6:57 pm PDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In Mapleton, the average daily maximum UV index in September is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: The maximum daily UV index, 4 in September, converts into the following recommendations:
Exercise prevention - Warding off sunburn is urged. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
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Frequently asked questions

What is the temperature in September in Mapleton?

An average high-temperature, in September, in Mapleton, is 66.2°F (19°C) and the average low-temperature is 52.3°F (11.3°C).

What is the least humid month in Mapleton?

April through July, September and October, with an average relative humidity of 81%, are the least humid months.

What is the average humidity in September in Mapleton?

The average relative humidity in September is 81%.

How many days does it rain in September in Mapleton?

In Mapleton, Oregon, during September, the rain falls for 6.8 days and regularly aggregates up to 0.79" (20mm) of precipitation.

When it does not snow in Mapleton?

March through October and December are months without snowfall.

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

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

When is the sunrise / sunset in September in Mapleton?

On the first day of September in Mapleton, sunrise is at 6:39 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 6:57 pm PDT.

How long on average sun shines in September in Mapleton?

The average sunshine duration in September in Mapleton, Oregon, is 9.3h.

What is the UV index reading in September in Mapleton?

In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium hazard to health 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
Mapleton, OR

Average temperature in September - Mapleton, OR
  • Average high temperature in September: 66.2°F

The warmest month (with the highest average high temperature) is August (68.2°F).
The month with the lowest average high temperature is December (48°F).

  • Average low temperature in September: 52.3°F

The month with the highest average low temperature is August (52.7°F).
The coldest month (with the lowest average low temperature) is February (40.6°F).

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Average pressure in September
Mapleton, OR

Average pressure in September - Mapleton, OR
  • Average pressure in September: 30.01"Hg

The months with the highest atmospheric pressure are January and April (30.09"Hg).
The month with the lowest atmospheric pressure is September (30.01"Hg).

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Average wind speed in September
Mapleton, OR

Average wind speed in September - Mapleton, OR
  • Average wind speed in September: 6.7mph

The windiest month (with the highest average wind speed) is December (9.4mph).
The calmest month (with the lowest average wind speed) is August (6.5mph).

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Average humidity in September
Mapleton, OR

Average humidity in September - Mapleton, OR
  • Average humidity in September: 81%

The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are April, May, June, July, September and October (81%).

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Average rainfall in September
Mapleton, OR

Average rainfall in September - Mapleton, OR
  • Average rainfall in September: 0.79"

The wettest month (with the highest rainfall) is December (3.58").
The driest month (with the least rainfall) is July (0.08").

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Average rainfall days in September
Mapleton, OR

Average rainfall days in September - Mapleton, OR
  • Average rainfall days in September: 6.8 days

The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is July (2.9 days).

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Average snowfall in September
Mapleton, OR

Average snowfall in September - Mapleton, OR
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").

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Average snowfall days in September
Mapleton, OR

Average snowfall days in September - Mapleton, OR
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.5 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and December (0 days).

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Average daylight in September /
Average sunshine in September
Mapleton, OR

Average daylight in September / Average sunshine in September - Mapleton, OR
  • Average daylight in September: 12h and 3min

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 September: 9h and 2min

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

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Average sunshine days in September
Mapleton, OR

Average sunshine days in September - Mapleton, OR
  • Average sunshine days in September: 21.8 days

The month with the most sunshine days is July (26.9 days).
The month with the least sunshine days is February (12.3 days).

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Average UV index in September
Mapleton, OR

Average UV index in September - Mapleton, OR
  • Average UV index in September: 4

The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, November and December (UV index 2).

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Average cloud cover in September
Mapleton, OR

Average cloud cover in September - Mapleton, OR
  • Average cloud cover in September: 31

The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Mapleton, OR

Average visibility in September - Mapleton, OR
  • Average visibility in September: 6mi

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

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Mapleton, Oregon, USA

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