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 transition into September is accompanied by a slight temperature decrease, with the average high-temperature shifting from a pleasant 72°F (22.2°C) in August to a refreshing 64.8°F (18.2°C). Keough throughout September, records an average low-temperature of 45.5°F (7.5°C).Humidity
In September, the average relative humidity in Keough is 81%.Rainfall
In Keough, in September, during 12.9 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. Throughout the year, in Keough, there are 149.8 rainfall days, and 32.24" (819mm) of precipitation is accumulated.Snowfall
In Keough, snow does not fall in June through September.Daylight
In September, the average length of the day in Keough is 12h and 31min.On the first day of the month, sunrise is at 6:04 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:40 am and sunset at 6:23 pm EDT.
Sunshine
In September, the average sunshine is 7.7h.UV index
In Keough, the average daily maximum UV index in September is 3. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: In September, a regular UV index of 3 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in September in Keough?
What is the average humidity in September in Keough?
How much does it rain in Keough in September?
When it does not snow in Keough?
Does it snow in Keough in September?
What is the average length of the day in September in Keough?
When are sunrise and sunset in September in Keough?
How many hours of sunshine does Keough have in September?
How high is the UV index in September in Keough?
Average temperature in September
Keough, ME
- Average high temperature in September: 64.8°F
The warmest month (with the highest average high temperature) is July (73.9°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in September: 45.5°F
The month with the highest average low temperature is July (54.1°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in September
Keough, ME
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is November (30.04"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Keough, ME
- Average wind speed in September: 6.2mph
The windiest months (with the highest average wind speed) are February and March (8.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in September
Keough, ME
- Average humidity in September: 81%
The month with the highest relative humidity is February (91%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Keough, ME
- Average rainfall in September: 2.28"
The wettest month (with the highest rainfall) is October (3.19").
The driest month (with the least rainfall) is February (2.17").
Average rainfall days in September
Keough, ME
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is August (17.6 days).
The month with the least rainy days is February (4.8 days).
Average snowfall in September
Keough, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (14.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Keough, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Keough, ME
- 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: 7h and 4min
The months with the most sunshine are July and August (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 2h and 24min).
Average sunshine days in September
Keough, ME
- Average sunshine days in September: 13.8 days
The month with the most sunshine days is September (13.8 days).
The month with the least sunshine days is February (6.4 days).
Average UV index in September
Keough, ME
- Average UV index in September: 3
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are February, March and December (UV index 1).
Average cloud cover in September
Keough, ME
- Average cloud cover in September: 45
The month with the most cloud cover is February (Cloud cover 79).
The month with the least cloud cover is July (Cloud cover 43).
Average visibility in September
Keough, ME
- Average visibility in September: 4mi
The months with the highest visibility are May, June, July, October and November (5mi).
The months with the lowest visibility are January, February, March, April, August, September and December (4mi).
Keough, Maine, USA
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