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
With the arrival of September, West Concord experiences a modest decline in average high-temperatures, transitioning from a moderately hot 81.1°F (27.3°C) in August to a pleasant 73°F (22.8°C). In the month of September, an average of 55.9°F (13.3°C) marks the low-temperature.Humidity
In West Concord, the average relative humidity in September is 76%.Rainfall
The month with the least rainfall is September, when the rain falls for 8.6 days and typically collects 0.71" (18mm) of precipitation.Snowfall
June through September are months without snowfall.Daylight
In West Concord, the average length of the day in September is 12h and 29min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:19 pm. On the last day of September, sunrise is at 6:42 am and sunset at 6:28 pm EDT.
Sunshine
The average sunshine in September is 8.4h.UV index
In September, the average daily maximum UV index is 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What are the temperatures in West Concord in September?
What is the average humidity in September in West Concord?
What is the driest month in West Concord?
How much does it rain in West Concord in September?
When it does not snow in West Concord?
Does it snow in West Concord in September?
How many hours of daylight does West Concord have in September?
When is the sunrise / sunset in September in West Concord?
How long on average sun shines in September in West Concord?
How high is the UV index in September in West Concord?
Average temperature in September
West Concord, MA
- Average high temperature in September: 73°F
The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (32.5°F).
- Average low temperature in September: 55.9°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in September
West Concord, MA
- Average pressure in September: 30.05"Hg
The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).
Average wind speed in September
West Concord, MA
- Average wind speed in September: 6.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).
Average humidity in September
West Concord, MA
- Average humidity in September: 76%
The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (70%).
Average rainfall in September
West Concord, MA
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is October (1.42").
The driest month (with the least rainfall) is September (0.71").
Average rainfall days in September
West Concord, MA
- Average rainfall days in September: 8.6 days
The month with the highest number of rainy days is May (12.8 days).
The month with the least rainy days is January (5.5 days).
Average snowfall in September
West Concord, MA
- Average snowfall in September: 0"
The month with the highest snowfall is December (2.24").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in September
West Concord, MA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (6.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
West Concord, 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 6min).
- Average sunshine in September: 8h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in September
West Concord, MA
- Average sunshine days in September: 19.3 days
The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are April and June (15.8 days).
Average UV index in September
West Concord, MA
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in September
West Concord, MA
- Average cloud cover in September: 37
The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in September
West Concord, MA
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
West Concord, Massachusetts, USA
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