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
During the shift to September, Ashley Falls records a mild decrease in average high-temperature, moving from a warm 78.8°F (26°C) in August to an agreeable 71.8°F (22.1°C). Throughout September, the temperature tends to fall to a consistent average low of 51.8°F (11°C).Humidity
In September, the average relative humidity is 80%.Rainfall
The month with the least rainfall in Ashley Falls is September, when the rain falls for 12 days and typically collects 2.17" (55mm) of precipitation.Snowfall
In Ashley Falls, snow does not fall in June through September.Daylight
In September, the average length of the day is 12h and 28min.On the first day of September, sunrise is at 6:19 am and sunset at 7:26 pm. On the last day of the month, sunrise is at 6:50 am and sunset at 6:36 pm EDT.
Sunshine
In September, the average sunshine is 8.3h.UV index
In Ashley Falls, the average daily maximum UV index in September is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In September, a daily maximum UV index of 4 leads to the following instructions:
Be mindful. Those with pale skin might receive burns in fewer than 30 minutes. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. Always opt for UVA and UVB-resistant sunglasses on radiant days.
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 Ashley Falls in September?
When it does not snow?
Does it snow in September?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index reading in September?
Average temperature in September
Ashley Falls, MA
- Average high temperature in September: 71.8°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30°F).
- Average low temperature in September: 51.8°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (17.6°F).
Average pressure in September
Ashley Falls, MA
- Average pressure in September: 30.06"Hg
The month with the highest atmospheric pressure is November (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in September
Ashley Falls, MA
- Average wind speed in September: 5.6mph
The windiest month (with the highest average wind speed) is March (8.1mph).
The calmest month (with the lowest average wind speed) is August (5mph).
Average humidity in September
Ashley Falls, MA
- Average humidity in September: 80%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is April (75%).
Average rainfall in September
Ashley Falls, MA
- Average rainfall in September: 2.17"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (2.17").
Average rainfall days in September
Ashley Falls, MA
- Average rainfall days in September: 12 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in September
Ashley Falls, MA
- Average snowfall in September: 0"
The month with the highest snowfall is February (6.81").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
Ashley Falls, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (12.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Ashley Falls, MA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Ashley Falls, MA
- Average sunshine days in September: 15.7 days
The month with the most sunshine days is November (15.8 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in September
Ashley Falls, MA
- Average UV index in September: 4
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Ashley Falls, MA
- Average cloud cover in September: 43
The month with the most cloud cover is February (Cloud cover 58).
The months with the least cloud cover are July and August (Cloud cover 39).
Average visibility in September
Ashley Falls, MA
- Average visibility in September: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Ashley Falls, Massachusetts, USA
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