Groton, us-Connecticut State, USA in September 2025 Historical Weather Query

Temperature Unit：

Wind Speed Unit：

Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
1 13.3 55.9 ~ 22.3°C 72.1°F Sunrise: 06:14 Sunset: 19:20	2 13.1 55.6 ~ 23.1°C 73.6°F Sunrise: 06:16 Sunset: 19:19	3 12 53.6 ~ 21°C 69.8°F Sunrise: 06:17 Sunset: 19:17	4 14.6 58.3 ~ 21.4°C 70.5°F Sunrise: 06:18 Sunset: 19:16	5 20 68 ~ 24.8°C 76.6°F Sunrise: 06:19 Sunset: 19:14	6 19.7 67.5 ~ 24.7°C 76.5°F Sunrise: 06:20 Sunset: 19:12	7 16.1 61 ~ 19.3°C 66.7°F Sunrise: 06:21 Sunset: 19:11
8 11.9 53.4 ~ 20.5°C 68.9°F Sunrise: 06:22 Sunset: 19:09	9 12.3 54.1 ~ 21.2°C 70.2°F Sunrise: 06:23 Sunset: 19:07	10 14.3 57.7 ~ 22.2°C 72°F Sunrise: 06:24 Sunset: 19:05	11 12.4 54.3 ~ 24.2°C 75.6°F Sunrise: 06:25 Sunset: 19:04	12 14.7 58.5 ~ 23.5°C 74.3°F Sunrise: 06:26 Sunset: 19:02	13 12.6 54.7 ~ 20.4°C 68.7°F Sunrise: 06:27 Sunset: 19:00	14 15.5 59.9 ~ 23.7°C 74.7°F Sunrise: 06:28 Sunset: 18:58
15 14.9 58.8 ~ 25.2°C 77.4°F Sunrise: 06:29 Sunset: 18:57	16 14.6 58.3 ~ 22.6°C 72.7°F Sunrise: 06:30 Sunset: 18:55	17 14.5 58.1 ~ 22.1°C 71.8°F Sunrise: 06:31 Sunset: 18:53	18 17.5 63.5 ~ 24.6°C 76.3°F Sunrise: 06:32 Sunset: 18:52	19 16.9 62.4 ~ 27.1°C 80.8°F Sunrise: 06:33 Sunset: 18:50	20 12.6 54.7 ~ 21.6°C 70.9°F Sunrise: 06:34 Sunset: 18:48	21 11.7 53.1 ~ 19.5°C 67.1°F Sunrise: 06:35 Sunset: 18:46
22 11 51.8 ~ 20.1°C 68.2°F Sunrise: 06:36 Sunset: 18:45	23 17.5 63.5 ~ 23.7°C 74.7°F Sunrise: 06:37 Sunset: 18:43	24 18.3 64.9 ~ 23.2°C 73.8°F Sunrise: 06:38 Sunset: 18:41	25 18.6 65.5 ~ 21.9°C 71.4°F Sunrise: 06:39 Sunset: 18:40	26 18.3 64.9 ~ 24.7°C 76.5°F Sunrise: 06:40 Sunset: 18:38	27 15.8 60.4 ~ 23°C 73.4°F Sunrise: 06:41 Sunset: 18:36	28 17.7 63.9 ~ 23.8°C 74.8°F Sunrise: 06:42 Sunset: 18:34
29 15.8 60.4 ~ 23.6°C 74.5°F Sunrise: 06:43 Sunset: 18:33	30 14 57.2 ~ 24.6°C 76.3°F Sunrise: 06:44 Sunset: 18:31

Groton, us-Connecticut State, USA September 2025, including Minimum Temperature, Maximum Temperature, Total Precipitation, Total Snowfall, Rainy Days, Snowy Days, Maximum Wind Speed etc. Minimum Temperature is 11 °C, Maximum Temperature is 27.1 °C, Total Precipitation is 76.7 mm, Total Snowfall is 0 cm, Rainy Days is 11 days, Snowy Days is 0 days, Maximum Wind Speed is 54 km/h.

Show Fields

Wind Speed Wind Direction Apparent Temperature Precipitation Snowfall Sunshine Duration Shortwave Radiation ET0 FAO Evapotranspiration

Date

Weather

Temperature

Wind Speed

Wind Direction

Apparent Temperature

Precipitation

Snowfall

Sunshine Duration

Shortwave Radiation

ET0 FAO Evapotranspiration

9/1

Overcast

13.3 55.9

22.3°C 72.1°F

26.6 km/h 16.5 mph 7.4 m/s 14.4 knots

↑

12.1 ~ 22.6°C 53.8 ~ 72.7°F

0 mm

0 cm

1.9 h

11.8 MJ/m²

2.3 mm

9/2

Overcast

13.1 55.6

23.1°C 73.6°F

34.2 km/h 21.3 mph 9.5 m/s 18.5 knots

↑

12 ~ 24.2°C 53.6 ~ 75.6°F

0 mm

0 cm

12 h

22.4 MJ/m²

3.8 mm

9/3

Overcast

12 53.6

21°C 69.8°F

28.8 km/h 17.9 mph 8 m/s 15.6 knots

↑

11.6 ~ 22.5°C 52.9 ~ 72.5°F

0 mm

0 cm

11.5 h

22.4 MJ/m²

3.7 mm

9/4

Overcast

14.6 58.3

21.4°C 70.5°F

41 km/h 25.5 mph 11.4 m/s 22.1 knots

↑

15.7 ~ 22.6°C 60.3 ~ 72.7°F

0 mm

0 cm

11.9 h

21.7 MJ/m²

3.5 mm

9/5

Dense drizzle

20 68

24.8°C 76.6°F

46.4 km/h 28.8 mph 12.9 m/s 25.1 knots

↑

20.5 ~ 27.1°C 68.9 ~ 80.8°F

1.3 mm

0 cm

11.8 h

20.8 MJ/m²

3.9 mm

9/6

Moderate rain

19.7 67.5

24.7°C 76.5°F

52.2 km/h 32.4 mph 14.5 m/s 28.2 knots

↑

22.3 ~ 27.5°C 72.1 ~ 81.5°F

17.1 mm

0 cm

11 h

17.3 MJ/m²

3 mm

9/7

Moderate rain

16.1 61

19.3°C 66.7°F

28.4 km/h 17.6 mph 7.9 m/s 15.3 knots

↑

16.5 ~ 21.4°C 61.7 ~ 70.5°F

14.8 mm

0 cm

0 h

4.5 MJ/m²

0.9 mm

9/8

Overcast

11.9 53.4

20.5°C 68.9°F

28.8 km/h 17.9 mph 8 m/s 15.6 knots

↑

9.2 ~ 20.4°C 48.6 ~ 68.7°F

0 mm

0 cm

11.2 h

17.7 MJ/m²

3.2 mm

9/9

Overcast

12.3 54.1

21.2°C 70.2°F

36 km/h 22.4 mph 10 m/s 19.4 knots

↑

10.6 ~ 21.2°C 51.1 ~ 70.2°F

0 mm

0 cm

11.6 h

21.9 MJ/m²

3.8 mm

9/10

Overcast

14.3 57.7

22.2°C 72°F

39.6 km/h 24.6 mph 11 m/s 21.4 knots

↑

12.6 ~ 21.7°C 54.7 ~ 71.1°F

0 mm

0 cm

6.4 h

13.8 MJ/m²

2.8 mm

9/11

Partly cloudy

12.4 54.3

24.2°C 75.6°F

31 km/h 19.3 mph 8.6 m/s 16.7 knots

↑

10.2 ~ 24.2°C 50.4 ~ 75.6°F

0 mm

0 cm

11.6 h

21.8 MJ/m²

4 mm

9/12

Mainly clear

14.7 58.5

23.5°C 74.3°F

32.4 km/h 20.1 mph 9 m/s 17.5 knots

↑

12.8 ~ 24.8°C 55 ~ 76.6°F

0 mm

0 cm

11.6 h

21 MJ/m²

3.9 mm

9/13

Overcast

12.6 54.7

20.4°C 68.7°F

33.5 km/h 20.8 mph 9.3 m/s 18.1 knots

↑

12.6 ~ 21.3°C 54.7 ~ 70.3°F

0 mm

0 cm

11.5 h

19.1 MJ/m²

3.2 mm

9/14

Light drizzle

15.5 59.9

23.7°C 74.7°F

33.1 km/h 20.6 mph 9.2 m/s 17.9 knots

↑

16.6 ~ 26.2°C 61.9 ~ 79.2°F

0.1 mm

0 cm

11.5 h

19 MJ/m²

3.3 mm

9/15

Overcast

14.9 58.8

25.2°C 77.4°F

24.8 km/h 15.4 mph 6.9 m/s 13.4 knots

↑

15.2 ~ 26.2°C 59.4 ~ 79.2°F

0 mm

0 cm

11 h

19.6 MJ/m²

3.6 mm

9/16

Overcast

14.6 58.3

22.6°C 72.7°F

34.9 km/h 21.7 mph 9.7 m/s 18.8 knots

↑

13.8 ~ 21.9°C 56.8 ~ 71.4°F

0 mm

0 cm

10.6 h

16.9 MJ/m²

3.4 mm

9/17

Moderate rain

14.5 58.1

22.1°C 71.8°F

36.7 km/h 22.8 mph 10.2 m/s 19.8 knots

↑

12.6 ~ 22.9°C 54.7 ~ 73.2°F

12.1 mm

0 cm

9.3 h

14.3 MJ/m²

2.6 mm

9/18

Overcast

17.5 63.5

24.6°C 76.3°F

32.4 km/h 20.1 mph 9 m/s 17.5 knots

↑

18.1 ~ 26.8°C 64.6 ~ 80.2°F

0 mm

0 cm

8.4 h

16.8 MJ/m²

3.2 mm

9/19

Mainly clear

16.9 62.4

27.1°C 80.8°F

32.4 km/h 20.1 mph 9 m/s 17.5 knots

↑

14.4 ~ 28.1°C 57.9 ~ 82.6°F

0 mm

0 cm

11.3 h

19.6 MJ/m²

4.3 mm

9/20

Partly cloudy

12.6 54.7

21.6°C 70.9°F

33.1 km/h 20.6 mph 9.2 m/s 17.9 knots

↑

9.4 ~ 21.4°C 48.9 ~ 70.5°F

0 mm

0 cm

11.3 h

20.4 MJ/m²

4.2 mm

9/21

Overcast

11.7 53.1

19.5°C 67.1°F

32.8 km/h 20.4 mph 9.1 m/s 17.7 knots

↑

10 ~ 17.9°C 50 ~ 64.2°F

0 mm

0 cm

11 h

17.7 MJ/m²

3.1 mm

9/22

Overcast

11 51.8

20.1°C 68.2°F

28.1 km/h 17.5 mph 7.8 m/s 15.2 knots

↑

9.4 ~ 20.5°C 48.9 ~ 68.9°F

0 mm

0 cm

11.1 h

18.9 MJ/m²

3.1 mm

9/23

Moderate rain

17.5 63.5

23.7°C 74.7°F

44.3 km/h 27.5 mph 12.3 m/s 23.9 knots

↑

17.8 ~ 24.5°C 64 ~ 76.1°F

3.7 mm

0 cm

11 h

15.3 MJ/m²

2.7 mm

9/24

Slight rain

18.3 64.9

23.2°C 73.8°F

27 km/h 16.8 mph 7.5 m/s 14.6 knots

↑

20 ~ 26.2°C 68 ~ 79.2°F

6.1 mm

0 cm

4 h

9.9 MJ/m²

1.8 mm

9/25

Moderate rain

18.6 65.5

21.9°C 71.4°F

54 km/h 33.6 mph 15 m/s 29.2 knots

↑

20 ~ 23.3°C 68 ~ 73.9°F

17.7 mm

0 cm

0.2 h

6 MJ/m²

1 mm

9/26

Light drizzle

18.3 64.9

24.7°C 76.5°F

47.2 km/h 29.3 mph 13.1 m/s 25.5 knots

↑

20 ~ 26.8°C 68 ~ 80.2°F

0.1 mm

0 cm

8.8 h

15.2 MJ/m²

2.7 mm

9/27

Light drizzle

15.8 60.4

23°C 73.4°F

25.6 km/h 15.9 mph 7.1 m/s 13.8 knots

↑

15.9 ~ 25.2°C 60.6 ~ 77.4°F

0.1 mm

0 cm

9.6 h

16.3 MJ/m²

2.9 mm

9/28

Slight rain

17.7 63.9

23.8°C 74.8°F

30.2 km/h 18.8 mph 8.4 m/s 16.3 knots

↑

19.7 ~ 26.1°C 67.5 ~ 79°F

3.6 mm

0 cm

8.7 h

16.7 MJ/m²

2.9 mm

9/29

Overcast

15.8 60.4

23.6°C 74.5°F

26.3 km/h 16.3 mph 7.3 m/s 14.2 knots

↑

14.1 ~ 24.6°C 57.4 ~ 76.3°F

0 mm

0 cm

8.8 h

14.9 MJ/m²

2.9 mm

9/30

Overcast

14 57.2

24.6°C 76.3°F

32 km/h 19.9 mph 8.9 m/s 17.3 knots

↑

11.8 ~ 24.3°C 53.2 ~ 75.7°F

0 mm

0 cm

9.2 h

14.3 MJ/m²

3.2 mm

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Monthly Statistics

76.7 mm

Total Precipitation

0.0 cm

Total Snowfall

12.4 hour

Average Daily Daylight Duration

9.3 hour

Average Daily Sunshine Duration

11 °C 51.8 °F

Minimum Temperature

27.1 °C 80.8 °F

Maximum Temperature

Location Map

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