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
The shift from August to September coincides with a small decrease in the average high-temperature, down to a still warm 73.4°F (23°C) from a moderately hot 80.4°F (26.9°C). In Alvadore, the nighttime chill during September is a clear shift from the day's highs, with an average of 47.3°F (8.5°C).Humidity
In September, the average relative humidity in Alvadore, Oregon, is 74%.Rainfall
In Alvadore, in September, during 5.8 rainfall days, 0.55" (14mm) of precipitation is typically accumulated. In Alvadore, during the entire year, the rain falls for 121.1 days and collects up to 11.73" (298mm) of precipitation.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September in Alvadore, sunrise is at 6:37 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:54 pm PDT.
Sunshine
In Alvadore, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index in Alvadore is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, the UV index of 4 transforms into the following advice:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Boost your sun resistance with garments that are densely woven yet spacious.
Frequently asked questions
What is the temperature in September in Alvadore?
What is the average humidity in September in Alvadore?
How many days does it rain in September in Alvadore?
When it does not snow in Alvadore?
How many hours of daylight does Alvadore have in September?
When is the sunrise / sunset in September in Alvadore?
How many hours of sunshine does Alvadore have in September?
What is the UV index intensity in September in Alvadore?
Average temperature in September
Alvadore, OR
- Average high temperature in September: 73.4°F
The warmest month (with the highest average high temperature) is August (80.4°F).
The month with the lowest average high temperature is December (45.7°F).
- Average low temperature in September: 47.3°F
The month with the highest average low temperature is August (50°F).
The coldest month (with the lowest average low temperature) is December (34.2°F).
Average pressure in September
Alvadore, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Alvadore, OR
- Average wind speed in September: 3.7mph
The windiest month (with the highest average wind speed) is March (4.6mph).
The calmest months (with the lowest average wind speed) are August and September (3.7mph).
Average humidity in September
Alvadore, OR
- Average humidity in September: 74%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (70%).
Average rainfall in September
Alvadore, OR
- Average rainfall in September: 0.55"
The wettest month (with the highest rainfall) is December (1.81").
The driest month (with the least rainfall) is July (0.12").
Average rainfall days in September
Alvadore, OR
- Average rainfall days in September: 5.8 days
The month with the highest number of rainy days is March (15.4 days).
The month with the least rainy days is August (3.2 days).
Average snowfall in September
Alvadore, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.06").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Alvadore, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Alvadore, 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 August (Average sunshine: 11h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Alvadore, OR
- Average sunshine days in September: 22.7 days
The month with the most sunshine days is July (25.3 days).
The month with the least sunshine days is February (13.2 days).
Average UV index in September
Alvadore, OR
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Alvadore, OR
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in September
Alvadore, OR
- Average visibility in September: 5mi
The months with the highest visibility are July, August and September (5mi).
The months with the lowest visibility are January, February, March, April, May, June, October, November and December (4mi).
Alvadore, Oregon, USA
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