September weather forecast
Agawam, MA

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Weather in September

The first month of the autumn, September, is also an agreeable month in Agawam, Massachusetts, with temperature in the range of an average high of 73.2°F (22.9°C) and an average low of 54.3°F (12.4°C).

Temperature

Agawam's progression into September involves a gentle drop in the average high-temperature, from a moderately hot 80.4°F (26.9°C) in August to an agreeable 73.2°F (22.9°C). Agawam witnesses a consistent average low-temperature of 54.3°F (12.4°C) throughout September.

Humidity

In Agawam, the average relative humidity in September is 77%.

Rainfall

In September, the rain falls for 9.6 days. Throughout September, 1.06" (27mm) of precipitation is accumulated. Throughout the year, there are 129.5 rainfall days, and 16.06" (408mm) of precipitation is accumulated.

Snowfall

May through October are months without snowfall in Agawam.

Daylight

In September, the average length of the day in Agawam is 12h and 28min.
On the first day of September, sunrise is at 6:16 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:33 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 reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 during September translates into the following directions:
Put precautions into practice - Guidance to elude sunburn is provided. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Jun 25, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in September?

An average high-temperature, in September, in Agawam, is 73.2°F (22.9°C) and the average low-temperature is 54.3°F (12.4°C). In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is estimated at 89.6°F (32°C).

What is the average humidity in September?

The average relative humidity in September in Agawam is 77%.

How much does it rain in September?

In Agawam, in September, it is raining for 9.6 days, with typically 1.06" (27mm) of accumulated precipitation.

When it does not snow?

In Agawam, snow does not fall in May through October.

How many hours of daylight does Agawam have in September?

In September, the average day length is 12h and 28min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:16 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:47 am and sunset at 6:33 pm EDT.

How many hours of sunshine does Agawam have in September?

The average sunshine duration in September is 8.5h.

How high is the UV index in September?

The average daily maximum UV index in September is 4. A UV Index estimate of 3 to 5 represents a moderate vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Agawam, MA

Average temperature in September - Agawam, MA
  • Average high temperature in September: 73.2°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in September: 54.3°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average pressure in September
Agawam, MA

Average pressure in September - Agawam, MA
  • Average pressure in September: 30.06"Hg

The month with the highest atmospheric pressure is November (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Agawam, MA

Average wind speed in September - Agawam, MA
  • Average wind speed in September: 5.5mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (5mph).

Average humidity in September
Agawam, MA

Average humidity in September - Agawam, MA
  • Average humidity in September: 77%

The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is April (71%).

Average rainfall in September
Agawam, MA

Average rainfall in September - Agawam, MA
  • Average rainfall in September: 1.06"

The wettest months (with the highest rainfall) are July and October (1.69").
The driest month (with the least rainfall) is February (0.91").

Average rainfall days in September
Agawam, MA

Average rainfall days in September - Agawam, MA
  • Average rainfall days in September: 9.6 days

The month with the highest number of rainy days is July (13.6 days).
The month with the least rainy days is January (7 days).

Average snowfall in September
Agawam, MA

Average snowfall in September - Agawam, MA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.81").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Agawam, MA

Average snowfall days in September - Agawam, MA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (7.3 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
Agawam, MA

Average daylight in September / Average sunshine in September - Agawam, 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 3min

The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).

Average sunshine days in September
Agawam, MA

Average sunshine days in September - Agawam, MA
  • Average sunshine days in September: 17.7 days

The month with the most sunshine days is January (20.4 days).
The month with the least sunshine days is June (15.1 days).

Average UV index in September
Agawam, MA

Average UV index in September - Agawam, MA
  • Average UV index in September: 4

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

Average cloud cover in September
Agawam, MA

Average cloud cover in September - Agawam, MA
  • Average cloud cover in September: 38

The months with the most cloud cover are February and March (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in September
Agawam, MA

Average visibility in September - Agawam, MA
  • 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).

Agawam, Massachusetts, USA

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