September weather forecastCheshire, OR
September
Weather in September
The first month of the autumn, September, is also a moderately hot month in Cheshire, Oregon, with temperature in the range of an average high of 73.4°F (23°C) and an average low of 47.3°F (8.5°C).Temperature
In September, the meteorological conditions change slightly, with the average high-temperature moving from 80.4°F (26.9°C) in August to a still warm 73.4°F (23°C). With a significant daily temperature differential, Cheshire's nighttime temperature in September falls to an average of 47.3°F (8.5°C).Humidity
In September, the average relative humidity is 74%.Rainfall
In Cheshire, Oregon, during September, the rain falls for 5.8 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Cheshire, 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
In September, the average length of the day is 12h and 29min.On the first day of September, 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 Cheshire, the average sunshine in September is 9.3h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, OR
- Average daylight in September: 12h and 30min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in September: 9h and 18min
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
Cheshire, 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
Cheshire, 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
Cheshire, 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
Cheshire, 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).
