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 modest decline in the average high-temperature is seen during September, decreasing from a warm 76.8°F (24.9°C) in August to an agreeable 69.6°F (20.9°C). An average nighttime temperature of 51.3°F (10.7°C) is recorded during September.Humidity
In September, the average relative humidity is 79%.Rainfall
The month with the least rainfall is September, when the rain falls for 9.2 days and typically collects 0.87" (22mm) of precipitation.Snowfall
June through October are months without snowfall.Daylight
The average length of the day in September is 12h and 29min.On the first day of September, sunrise is at 6:06 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:24 pm EDT.
Sunshine
The average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September 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 average person.Note: The maximum UV index of 4 during September translates into these guidelines:
Undertake protective steps - Preventing sun damage is advised. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature?
What is the average humidity in September?
What is the driest month?
How much does it rain in September?
When it does not snow in Steep Falls?
How many hours of daylight does Steep Falls have in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Steep Falls have in September?
What is the UV index intensity in September?
Average temperature in September
Steep Falls, ME
- Average high temperature in September: 69.6°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 (27.5°F).
- Average low temperature in September: 51.3°F
The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (14.4°F).
Average pressure in September
Steep Falls, ME
- Average pressure in September: 30.05"Hg
The months with the highest atmospheric pressure are September and November (30.05"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Steep Falls, ME
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Steep Falls, ME
- Average humidity in September: 79%
The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is November (76%).
Average rainfall in September
Steep Falls, ME
- Average rainfall in September: 0.87"
The wettest months (with the highest rainfall) are June and October (1.77").
The driest month (with the least rainfall) is September (0.87").
Average rainfall days in September
Steep Falls, ME
- Average rainfall days in September: 9.2 days
The months with the highest number of rainy days are June and July (14.3 days).
The month with the least rainy days is February (4.4 days).
Average snowfall in September
Steep Falls, ME
- Average snowfall in September: 0"
The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in September
Steep Falls, ME
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (7.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Steep Falls, ME
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in September: 8h and 3min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Steep Falls, ME
- Average sunshine days in September: 18.5 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in September
Steep Falls, 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
Steep Falls, ME
- Average cloud cover in September: 34
The months with the most cloud cover are February and March (Cloud cover 50).
The months with the least cloud cover are August and September (Cloud cover 34).
Average visibility in September
Steep Falls, ME
- Average visibility in September: 5mi
The months with the highest visibility are January, March, April, October, November and December (6mi).
The months with the lowest visibility are February, May, June, July, August and September (5mi).
Steep Falls, Maine, USA
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