September weather forecastMapleton, OR
September
Weather in September
September, the first month of the autumn in Mapleton, is also an enjoyable month, with an average temperature fluctuating between 52.3°F (11.3°C) and 66.2°F (19°C).Temperature
As Mapleton welcomes September, the average high-temperature records at an enjoyable 66.2°F (19°C), marking an insignificant deviation from the prior month. Throughout September, Mapleton anticipates an average low-temperature of 52.3°F (11.3°C).Humidity
April through July, September and October, with an average relative humidity of 81%, are the least humid months.Rainfall
In Mapleton, in September, during 6.8 rainfall days, 0.79" (20mm) of precipitation is typically accumulated. Throughout the year, in Mapleton, there are 131.8 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
In Mapleton, snow does not fall in March through October and December.Daylight
In Mapleton, Oregon, the average length of the day in September 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, sunrise is at 7:12 am and sunset at 6:57 pm PDT.
Sunshine
In Mapleton, the average sunshine in September 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 health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 4 during September translates into these guidelines:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in September /
Average sunshine in September
Mapleton, OR
- Average daylight in September: 12h and 30min
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 18min
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).
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).
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).
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).
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).
