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
In September, the average high-temperature marginally drops from an agreeable 73.2°F (22.9°C) in August to a comfortable 64.4°F (18°C). Limestone records an average nighttime low of 45.7°F (7.6°C) in September.Humidity
In Limestone, the average relative humidity in September is 81%.Rainfall
In Limestone, during September, the rain falls for 12.7 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Limestone, during the entire year, the rain falls for 139.1 days and collects up to 24.21" (615mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In September, the average length of the day is 12h and 32min.On the first day of the month, sunrise is at 5:51 am and sunset at 7:10 pm. On the last day of September, sunrise is at 6:29 am and sunset at 6:12 pm EDT.
Sunshine
The average sunshine in September in Limestone is 7.1h.UV index
The average daily maximum UV index in September is 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures?
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 Limestone have in September?
When are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Limestone, ME
- Average high temperature in September: 64.4°F
The warmest month (with the highest average high temperature) is July (74.7°F).
The month with the lowest average high temperature is January (19.2°F).
- Average low temperature in September: 45.7°F
The month with the highest average low temperature is July (54.7°F).
The coldest month (with the lowest average low temperature) is January (3.6°F).
Average pressure in September
Limestone, ME
- Average pressure in September: 30.02"Hg
The month with the highest atmospheric pressure is September (30.02"Hg).
The months with the lowest atmospheric pressure are June and July (29.89"Hg).
Average wind speed in September
Limestone, ME
- Average wind speed in September: 6.8mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (6.4mph).
Average humidity in September
Limestone, ME
- Average humidity in September: 81%
The months with the highest relative humidity are February and March (93%).
The month with the lowest relative humidity is May (76%).
Average rainfall in September
Limestone, ME
- Average rainfall in September: 1.69"
The wettest month (with the highest rainfall) is July (2.6").
The driest month (with the least rainfall) is February (1.46").
Average rainfall days in September
Limestone, ME
- Average rainfall days in September: 12.7 days
The months with the highest number of rainy days are May, June and August (16.8 days).
The month with the least rainy days is January (4 days).
Average snowfall in September
Limestone, ME
- Average snowfall in September: 0"
The month with the highest snowfall is January (10.63").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Limestone, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (21 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Limestone, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 48min).
The month with the shortest days is December (Average daylight: 8h and 36min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is August (Average sunshine: 9h and 18min).
The month with the least sunshine is February (Average sunshine: 2h and 6min).
Average sunshine days in September
Limestone, ME
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is April (7.8 days).
Average UV index in September
Limestone, ME
- Average UV index in September: 3
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).
Average cloud cover in September
Limestone, ME
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 75).
The months with the least cloud cover are July and August (Cloud cover 44).
Average visibility in September
Limestone, ME
- Average visibility in September: 5mi
The month with the highest visibility is May (6mi).
The months with the lowest visibility are January, February, March, April and December (4mi).
Limestone, Maine, USA
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