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 brings a slight decrease in temperature, down from a moderately hot 75.7°F (24.3°C) in August to a pleasant 68.4°F (20.2°C). During September, the temperature in Farmington, Maine, is averaged to a low of 48.2°F (9°C) at night.Humidity
In September, the average relative humidity is 79%.Rainfall
In Farmington, during September, the rain falls for 10.5 days and regularly aggregates up to 1.85" (47mm) of precipitation. Throughout the year, there are 152.2 rainfall days, and 29.09" (739mm) of precipitation is accumulated.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day in Farmington is 12h and 31min.On the first day of the month, sunrise is at 6:03 am and sunset at 7:16 pm. On the last day of September, sunrise is at 6:38 am and sunset at 6:22 pm EDT.
Sunshine
In Farmington, Maine, the average sunshine in September is 8.4h.UV index
The average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 3 in September transforms into the following instructions:
Undertake protective steps - Recommendations to avoid sunburn are issued. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
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?
Does it snow in September?
How many hours of daylight does Farmington have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
Farmington, ME
- Average high temperature in September: 68.4°F
The warmest month (with the highest average high temperature) is July (77.4°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in September: 48.2°F
The month with the highest average low temperature is July (55.9°F).
The coldest month (with the lowest average low temperature) is January (10.6°F).
Average pressure in September
Farmington, ME
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Farmington, ME
- Average wind speed in September: 5.1mph
The windiest month (with the highest average wind speed) is March (7.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).
Average humidity in September
Farmington, ME
- Average humidity in September: 79%
The months with the highest relative humidity are February and March (86%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Farmington, ME
- Average rainfall in September: 1.85"
The wettest month (with the highest rainfall) is October (3.43").
The driest month (with the least rainfall) is July (1.69").
Average rainfall days in September
Farmington, ME
- Average rainfall days in September: 10.5 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is February (9.1 days).
Average snowfall in September
Farmington, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Farmington, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (13.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Farmington, ME
- Average daylight in September: 12h and 3min
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: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in September
Farmington, ME
- Average sunshine days in September: 17.3 days
The month with the most sunshine days is September (17.3 days).
The month with the least sunshine days is March (10.9 days).
Average UV index in September
Farmington, ME
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
Farmington, ME
- Average cloud cover in September: 37
The months with the most cloud cover are February, March and April (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 37).
Average visibility in September
Farmington, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (5mi).
The month with the lowest visibility is August (4mi).
Farmington, Maine, USA
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