September weather forecast
Stafford Springs, CT

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Weather in September

September marks a notable shift in the climate of Stafford Springs, as summer gently gives way to autumn. While the weather remains warm, the temperature, humidity, and daylight hours gradually decline compared to August. Instead of sweltering heat and consistent swimming conditions, September presents a harmonious mix of warm days and cooler nights. The arrival of fall introduces spectacular foliage, adding a charming touch to the city's landscape. Generally, September strikes a balance between the warmth of summer and the crispness of fall, offering the perfect weather for hiking and other outdoor pursuits.

Temperature

With the onset of September, Stafford Springs's average high-temperature slightly adjusts, moderately receding from August's warm 80.1°F (26.7°C) to a still moderately hot 73.4°F (23°C). The average low-temperature, in September, in Stafford Springs, is a cool 54.5°F (12.5°C).

Humidity

The average relative humidity in September is 78%.

Rainfall

The month with the least rainfall is September, when the rain falls for 7.9 days and typically collects 0.39" (10mm) of precipitation.

Snowfall

June through October are months without snowfall.

Daylight

In Stafford Springs, the average length of the day in September is 12h and 28min.
On the first day of September in Stafford Springs, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of the month, sunrise is at 6:45 am and sunset at 6:32 pm EDT.

Sunshine

In Stafford Springs, Connecticut, the average sunshine in September is 8.5h.

UV index

The average daily maximum UV index in September in Stafford Springs is 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the average person.
Note: The maximum daily UV index of 4 in September converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

What are September temperatures in Stafford Springs?

The average high-temperature, in September, in Stafford Springs, is 73.4°F (23°C), while the average low-temperature is 54.5°F (12.5°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in July is computed to be 87.8°F (31°C).

What is the average humidity in September in Stafford Springs?

In Stafford Springs, the average relative humidity in September is 78%.

What is the driest month in Stafford Springs?

September is the month with the least rainfall in Stafford Springs, Connecticut. Rain falls for 7.9 days and accumulates 0.39" (10mm) of precipitation.

How much does it rain in Stafford Springs in September?

In Stafford Springs, in September, during 7.9 rainfall days, 0.39" (10mm) of precipitation is typically accumulated.

When it does not snow in Stafford Springs?

In Stafford Springs, Connecticut, snow does not fall in June through October.

What is the average length of the day in September in Stafford Springs?

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

What time are sunrise and sunset in September in Stafford Springs?

In September, on the first day of the month, sunrise is at 6:15 am and sunset at 7:22 pm. On the last day of the month, in Stafford Springs, sunrise is at 6:45 am and sunset at 6:32 pm EDT.

How long on average sun shines in September in Stafford Springs?

In Stafford Springs, Connecticut, the average sunshine duration in September is 8.5h.

How high is the UV index in September in Stafford Springs?

In September, the average daily maximum UV index in Stafford Springs, Connecticut, is 4. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
80.1°F 26.7°C
73.4°F 23°C
60.4°F 15.8°C
Average low temperature
61.3°F 16.3°C
54.5°F 12.5°C
45.5°F 7.5°C
Average pressure
29.98" 761mmHg
30.06" 764mmHg
30.01" 762mmHg
Average wind speed
5.2mph 8.4km/h
5.8mph 9.3km/h
6.9mph 11.1km/h
Average max. wind speed
5.8mph 9.3km/h
6mph 9.7km/h
7.6mph 12.2km/h
Average wind speed gusts
8.3mph 13.4km/h
9.2mph 14.8km/h
11.2mph 18km/h
Average humidity
76%
78%
79%
Average rainfall
0.91" 23mm
0.39" 10mm
0.91" 23mm
Average rainfall days
9.8
7.9
9.5
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0.3
Average daylight
13h 5min
12h 3min
11h 1min
Average sunshine
10h 2min
8h 3min
5h 5min
Average sunshine days
18.3
19.8
18.5
Average UV index
6
4
3
Average cloud cover
34%
39%
44%
Average visibility
5mi 8km
5mi 8km
6mi 9.7km

Average temperature in September
Stafford Springs, CT

Average temperature in September - Stafford Springs, CT
  • Average high temperature in September: 73.4°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in September: 54.5°F

The month with the highest average low temperature is July (62.6°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in September
Stafford Springs, CT

Average pressure in September - Stafford Springs, CT
  • 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).

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Average wind speed in September
Stafford Springs, CT

Average wind speed in September - Stafford Springs, CT
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are January and March (8.2mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in September
Stafford Springs, CT

Average humidity in September - Stafford Springs, CT
  • Average humidity in September: 78%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in September
Stafford Springs, CT

Average rainfall in September - Stafford Springs, CT
  • Average rainfall in September: 0.39"

The wettest months (with the highest rainfall) are May, June and July (1.1").
The driest month (with the least rainfall) is September (0.39").

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Average rainfall days in September
Stafford Springs, CT

Average rainfall days in September - Stafford Springs, CT
  • Average rainfall days in September: 7.9 days

The month with the highest number of rainy days is June (12.1 days).
The months with the least rainy days are January and February (5.5 days).

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Average snowfall in September
Stafford Springs, CT

Average snowfall in September - Stafford Springs, CT
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in September
Stafford Springs, CT

Average snowfall days in September - Stafford Springs, CT
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (6.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in September /
Average sunshine in September
Stafford Springs, CT

Average daylight in September / Average sunshine in September - Stafford Springs, CT
  • 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 months with the most sunshine are July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 36min).

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Average sunshine days in September
Stafford Springs, CT

Average sunshine days in September - Stafford Springs, CT
  • Average sunshine days in September: 19.8 days

The month with the most sunshine days is January (21.9 days).
The month with the least sunshine days is June (15.7 days).

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Average UV index in September
Stafford Springs, CT

Average UV index in September - Stafford Springs, CT
  • 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).

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Average cloud cover in September
Stafford Springs, CT

Average cloud cover in September - Stafford Springs, CT
  • Average cloud cover in September: 39

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).

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Average visibility in September
Stafford Springs, CT

Average visibility in September - Stafford Springs, CT
  • 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).

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Stafford Springs, Connecticut, USA

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