Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As Swisshome transitions from August to September, the average high-temperatures adjust to a refreshing 66.2°F (19°C), nearly the same as the previous 68.2°F (20.1°C). Throughout the September nights, Swisshome encounters a low-temperature of 52.3°F (11.3°C).Humidity
The months with the lowest humidity are April through July, September and October, with an average relative humidity of 81%.Rainfall
In September, in Swisshome, the rain falls for 6.8 days. Throughout September, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 131.8 rainfall days, and 20.63" (524mm) of precipitation is accumulated.Snowfall
March through October and December are months without snowfall.Daylight
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 September, the average sunshine is 9.3h.UV index
In Swisshome, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum UV index, 4 during September, leads to the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What are the least humid months in Swisshome?
What is the average humidity in September?
How much does it rain in Swisshome in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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: 8h and 54min).
- 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).
Average sunshine days in September
Swisshome, 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
Swisshome, 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
Swisshome, 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
Swisshome, 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).
Swisshome, Oregon, USA
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