September weather forecastCambridge, ME
September
Weather in September
The first month of the autumn, September, is still a pleasant month in Cambridge, Maine, with temperature in the range of an average low of 48.9°F (9.4°C) and an average high of 68.9°F (20.5°C).Temperature
The shift from August to September coincides with a small decrease in the average high-temperature, down to a pleasant 68.9°F (20.5°C) from a warm 76.5°F (24.7°C). Throughout September, the temperature in Cambridge falls to an average low of 48.9°F (9.4°C).Humidity
The average relative humidity in September is 78%.Rainfall
In Cambridge, during September, the rain falls for 9.1 days and regularly aggregates up to 1.06" (27mm) of precipitation. Throughout the year, there are 120.7 rainfall days, and 15.79" (401mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 31min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:14 pm. On the last day of September, in Cambridge, sunrise is at 6:35 am and sunset at 6:19 pm EDT.
Sunshine
In Cambridge, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index in Cambridge is 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Adopt protective measures - Suggestions to resist sunburn are offered. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cambridge, ME
- Average high temperature in September: 68.9°F
The warmest month (with the highest average high temperature) is July (77.5°F).
The month with the lowest average high temperature is January (24.8°F).
- Average low temperature in September: 48.9°F
The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in September
Cambridge, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is September (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Cambridge, ME
- Average wind speed in September: 5.8mph
The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Cambridge, ME
- Average humidity in September: 78%
The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are May and November (77%).
Average rainfall in September
Cambridge, ME
- Average rainfall in September: 1.06"
The wettest months (with the highest rainfall) are April, June and October (1.73").
The driest months (with the least rainfall) are February and March (0.91").
Average rainfall days in September
Cambridge, ME
- Average rainfall days in September: 9.1 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (4.3 days).
Average snowfall in September
Cambridge, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Cambridge, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Cambridge, ME
- Average daylight in September: 12h and 30min
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: 8h and 6min
The month with the most sunshine is August (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Cambridge, ME
- Average sunshine days in September: 19 days
The month with the most sunshine days is January (19.6 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in September
Cambridge, ME
- 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, March, October, November and December (UV index 2).
Average cloud cover in September
Cambridge, ME
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in September
Cambridge, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (5mi).
