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
In the transition to September, Colton observes a minor drop in the average high-temperature, shifting from a moderately hot 79°F (26.1°C) in August to an agreeable 71.8°F (22.1°C). Colton sees a major change from daytime highs, with the nighttime temperature dipping to a chilly 48.7°F (9.3°C) on average during September.Humidity
In September, the average relative humidity is 71%.Rainfall
In Colton, in September, it is raining for 10.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, there are 175.6 rainfall days, and 36.1" (917mm) of precipitation is accumulated.Snowfall
In Colton, snow does not fall in May through October.Daylight
In Colton, the average length of the day in September is 12h and 31min.On the first day of September, sunrise is at 6:32 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:51 pm PDT.
Sunshine
The average sunshine in September is 9.3h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the ordinary person.Note: An average maximum UV index of 3 in September leads to these recommendations:
Heed the precautions - Suggestions to avoid sunburn are made. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September?
What is the average humidity in September?
How much does it rain 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 in Colton?
How many hours of sunshine does Colton have in September?
What is the UV index intensity in September?
Average temperature in September
Colton, OR
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is August (79°F).
The month with the lowest average high temperature is December (43.7°F).
- Average low temperature in September: 48.7°F
The month with the highest average low temperature is August (51.1°F).
The coldest month (with the lowest average low temperature) is December (33.3°F).
Average pressure in September
Colton, OR
- Average pressure in September: 30.01"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is August (30"Hg).
Average wind speed in September
Colton, OR
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is January (6.3mph).
The calmest month (with the lowest average wind speed) is August (3.7mph).
Average humidity in September
Colton, OR
- Average humidity in September: 71%
The months with the highest relative humidity are February and March (85%).
The month with the lowest relative humidity is August (66%).
Average rainfall in September
Colton, OR
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is December (5.39").
The driest month (with the least rainfall) is July (0.28").
Average rainfall days in September
Colton, OR
- Average rainfall days in September: 10.3 days
The month with the highest number of rainy days is March (20.7 days).
The month with the least rainy days is July (4.8 days).
Average snowfall in September
Colton, OR
- Average snowfall in September: 0"
The month with the highest snowfall is February (2.28").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Colton, OR
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 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
Colton, OR
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in September: 9h and 2min
The months with the most sunshine are July and August (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 4h and 0min).
Average sunshine days in September
Colton, OR
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is July (24.2 days).
The month with the least sunshine days is February (8.2 days).
Average UV index in September
Colton, OR
- Average UV index in September: 3
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
Colton, OR
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in September
Colton, OR
- Average visibility in September: 6mi
The months with the highest visibility are August and September (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (5mi).
Colton, Oregon, USA
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