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
A minor decrease in the average high-temperature is observed during September, shifting from a moderately hot 75.9°F (24.4°C) in August to an agreeable 68°F (20°C). In September, the nighttime temperature lowers to an average of 48.6°F (9.2°C).Humidity
The average relative humidity in September is 79%.Rainfall
In Guilford, in September, it is raining for 12.2 days, with typically 2.44" (62mm) of accumulated precipitation. In Guilford, Maine, during the entire year, the rain falls for 154.3 days and collects up to 32.68" (830mm) of precipitation.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 September, sunrise is at 6:00 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:35 am and sunset at 6:19 pm EDT.
Sunshine
In September, the average sunshine is 8.1h.UV index
In Guilford, the average daily maximum UV index in September is 4. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 4 during September translates into the following recommendations:
Guard yourself - Precautionary measures against sun damage are advocated. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. 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
What is the usual temperature for Guilford 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 Guilford in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Guilford have in September?
What is the UV index intensity in September in Guilford?
Average temperature in September
Guilford, ME
- Average high temperature in September: 68°F
The warmest month (with the highest average high temperature) is July (77.2°F).
The month with the lowest average high temperature is January (23.9°F).
- Average low temperature in September: 48.6°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 (10.8°F).
Average pressure in September
Guilford, 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 (29.9"Hg).
Average wind speed in September
Guilford, ME
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (7.5mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Guilford, ME
- Average humidity in September: 79%
The month with the highest relative humidity is February (88%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Guilford, ME
- Average rainfall in September: 2.44"
The wettest month (with the highest rainfall) is April (3.54").
The driest month (with the least rainfall) is July (1.89").
Average rainfall days in September
Guilford, ME
- Average rainfall days in September: 12.2 days
The months with the highest number of rainy days are May and July (16.7 days).
The month with the least rainy days is February (6.8 days).
Average snowfall in September
Guilford, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (11.26").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Guilford, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (15.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Guilford, 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: 8h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Guilford, ME
- Average sunshine days in September: 16.4 days
The month with the most sunshine days is September (16.4 days).
The month with the least sunshine days is April (10.7 days).
Average UV index in September
Guilford, 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
Guilford, ME
- Average cloud cover in September: 40
The month with the most cloud cover is February (Cloud cover 59).
The months with the least cloud cover are August and September (Cloud cover 40).
Average visibility in September
Guilford, ME
- Average visibility in September: 5mi
The months with the highest visibility are April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January, February and March (4mi).
Guilford, Maine, USA
Weather forecast for your location
2. Allow the app to use your location