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
September signifies a minor drop in average high-temperature, transitioning from 80.4°F (26.9°C) in August to a still moderately hot 73.9°F (23.3°C). Lowell experiences a significant reduction from daytime highs with an average low-temperature of 46.4°F (8°C) in September.Humidity
The average relative humidity in September in Lowell is 73%.Rainfall
In Lowell, in September, during 7.8 rainfall days, 1.42" (36mm) of precipitation is typically accumulated. Throughout the year, there are 158.1 rainfall days, and 30.12" (765mm) of precipitation is accumulated.Snowfall
In Lowell, snow does not fall in May through October.Daylight
In September, the average length of the day is 12h and 29min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:46 pm. On the last day of September, in Lowell, sunrise is at 7:08 am and sunset at 6:53 pm PDT.
Sunshine
In Lowell, the average sunshine in September is 9.2h.UV index
In Lowell, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, a daily maximum UV index of 3 leads to the following instructions:
Ensure safety - Sun damage prevention is strongly urged. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Frequently asked questions
What is the temperature in September in Lowell?
What is the average humidity in September in Lowell?
How much does it rain in Lowell in September?
When it does not snow in Lowell?
What is the average length of the day in September in Lowell?
What time are sunrise and sunset in September in Lowell?
How long on average sun shines in September in Lowell?
How high is the UV index in September in Lowell?
Average temperature in September
Lowell, OR
- Average high temperature in September: 73.9°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 (46°F).
- Average low temperature in September: 46.4°F
The month with the highest average low temperature is August (49.6°F).
The coldest month (with the lowest average low temperature) is December (33.8°F).
Average pressure in September
Lowell, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are August and September (30.01"Hg).
Average wind speed in September
Lowell, OR
- Average wind speed in September: 3.5mph
The windiest months (with the highest average wind speed) are January and March (4.4mph).
The calmest months (with the lowest average wind speed) are August and September (3.5mph).
Average humidity in September
Lowell, OR
- Average humidity in September: 73%
The months with the highest relative humidity are January, February, March and December (86%).
The month with the lowest relative humidity is August (69%).
Average rainfall in September
Lowell, OR
- Average rainfall in September: 1.42"
The wettest month (with the highest rainfall) is December (4.57").
The driest month (with the least rainfall) is July (0.2").
Average rainfall days in September
Lowell, OR
- Average rainfall days in September: 7.8 days
The month with the highest number of rainy days is March (20.3 days).
The month with the least rainy days is August (3.5 days).
Average snowfall in September
Lowell, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.72").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Lowell, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Lowell, 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 1min
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 6min).
Average sunshine days in September
Lowell, OR
- Average sunshine days in September: 20.7 days
The month with the most sunshine days is August (25.6 days).
The month with the least sunshine days is February (9.1 days).
Average UV index in September
Lowell, OR
- Average UV index in September: 3
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Lowell, OR
- Average cloud cover in September: 33
The month with the most cloud cover is March (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in September
Lowell, OR
- Average visibility in September: 5mi
The months with the highest visibility are June, July, August, September and October (5mi).
The months with the lowest visibility are January, February, March, April, May, November and December (4mi).
Lowell, Oregon, USA
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