Reston, us-Virginia State, USA in December 2021 Historical Weather Query

Temperature Unit：

Wind Speed Unit：

Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
		1 2.6 36.7 ~ 11.4°C 52.5°F Sunrise: 07:09 Sunset: 16:47	2 6.6 43.9 ~ 17.4°C 63.3°F Sunrise: 07:10 Sunset: 16:47	3 4.9 40.8 ~ 10.6°C 51.1°F Sunrise: 07:11 Sunset: 16:47	4 4.1 39.4 ~ 12.5°C 54.5°F Sunrise: 07:12 Sunset: 16:46	5 1.7 35.1 ~ 9.9°C 49.8°F Sunrise: 07:13 Sunset: 16:46
6 4.2 39.6 ~ 19.2°C 66.6°F Sunrise: 07:14 Sunset: 16:46	7 0 32 ~ 4.9°C 40.8°F Sunrise: 07:15 Sunset: 16:46	8 0.4 32.7 ~ 4.9°C 40.8°F Sunrise: 07:15 Sunset: 16:46	9 -2.5 27.5 ~ 5.7°C 42.3°F Sunrise: 07:16 Sunset: 16:46	10 1.8 35.2 ~ 10.7°C 51.3°F Sunrise: 07:17 Sunset: 16:46	11 8 46.4 ~ 19.9°C 67.8°F Sunrise: 07:18 Sunset: 16:47	12 1.1 34 ~ 8.6°C 47.5°F Sunrise: 07:19 Sunset: 16:47
13 -2.5 27.5 ~ 10.2°C 50.4°F Sunrise: 07:19 Sunset: 16:47	14 2.2 36 ~ 12.5°C 54.5°F Sunrise: 07:20 Sunset: 16:47	15 0.9 33.6 ~ 13.2°C 55.8°F Sunrise: 07:21 Sunset: 16:47	16 7.2 45 ~ 17.6°C 63.7°F Sunrise: 07:21 Sunset: 16:48	17 8.9 48 ~ 15.1°C 59.2°F Sunrise: 07:22 Sunset: 16:48	18 8.4 47.1 ~ 13.4°C 56.1°F Sunrise: 07:22 Sunset: 16:48	19 -0.2 31.6 ~ 13.1°C 55.6°F Sunrise: 07:23 Sunset: 16:49
20 -3.5 25.7 ~ 4.4°C 39.9°F Sunrise: 07:24 Sunset: 16:49	21 -2.3 27.9 ~ 5.9°C 42.6°F Sunrise: 07:24 Sunset: 16:50	22 -0.2 31.6 ~ 7.6°C 45.7°F Sunrise: 07:25 Sunset: 16:50	23 -3.5 25.7 ~ 4.6°C 40.3°F Sunrise: 07:25 Sunset: 16:51	24 2.3 36.1 ~ 15.4°C 59.7°F Sunrise: 07:25 Sunset: 16:51	25 9 48.2 ~ 19.5°C 67.1°F Sunrise: 07:26 Sunset: 16:52	26 4.9 40.8 ~ 13.5°C 56.3°F Sunrise: 07:26 Sunset: 16:53
27 1.5 34.7 ~ 5.2°C 41.4°F Sunrise: 07:27 Sunset: 16:53	28 3.9 39 ~ 12.3°C 54.1°F Sunrise: 07:27 Sunset: 16:54	29 7.2 45 ~ 15.8°C 60.4°F Sunrise: 07:27 Sunset: 16:55	30 8 46.4 ~ 11.5°C 52.7°F Sunrise: 07:27 Sunset: 16:56	31 7.4 45.3 ~ 14.4°C 57.9°F Sunrise: 07:27 Sunset: 16:56

Reston, us-Virginia State, USA December 2021, including Minimum Temperature, Maximum Temperature, Total Precipitation, Total Snowfall, Rainy Days, Snowy Days, Maximum Wind Speed etc. Minimum Temperature is -3.5 °C, Maximum Temperature is 19.9 °C, Total Precipitation is 32.5 mm, Total Snowfall is 0.4 cm, Rainy Days is 15 days, Snowy Days is 1 days, Maximum Wind Speed is 67 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

12/1

Moderate drizzle

2.6 36.7

11.4°C 52.5°F

29.2 km/h 18.1 mph 8.1 m/s 15.8 knots

↑

-1.4 ~ 8.8°C 29.5 ~ 47.8°F

0.5 mm

0 cm

8.4 h

9.8 MJ/m²

1.6 mm

12/2

Overcast

6.6 43.9

17.4°C 63.3°F

46.8 km/h 29.1 mph 13 m/s 25.3 knots

↑

3.2 ~ 13.6°C 37.8 ~ 56.5°F

0 mm

0 cm

5.3 h

6.8 MJ/m²

1.9 mm

12/3

Overcast

4.9 40.8

10.6°C 51.1°F

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

↑

1.5 ~ 7.6°C 34.7 ~ 45.7°F

0 mm

0 cm

5.3 h

6 MJ/m²

1.4 mm

12/4

Overcast

4.1 39.4

12.5°C 54.5°F

21.2 km/h 13.2 mph 5.9 m/s 11.4 knots

↑

1 ~ 9.8°C 33.8 ~ 49.6°F

0 mm

0 cm

8.4 h

9.6 MJ/m²

1.5 mm

12/5

Overcast

1.7 35.1

9.9°C 49.8°F

27.7 km/h 17.2 mph 7.7 m/s 15 knots

↑

-1.7 ~ 5.7°C 28.9 ~ 42.3°F

0 mm

0 cm

5.5 h

6.7 MJ/m²

1.4 mm

12/6

Light drizzle

4.2 39.6

19.2°C 66.6°F

67 km/h 41.6 mph 18.6 m/s 36.2 knots

↑

-1.7 ~ 16.6°C 28.9 ~ 61.9°F

0.2 mm

0 cm

6 h

6.4 MJ/m²

2 mm

12/7

Overcast

0 32

4.9°C 40.8°F

50.4 km/h 31.3 mph 14 m/s 27.2 knots

↑

-4.6 ~ 0.6°C 23.7 ~ 33.1°F

0 mm

0 cm

6.3 h

8.1 MJ/m²

1.3 mm

12/8

Slight snow

0.4 32.7

4.9°C 40.8°F

31.7 km/h 19.7 mph 8.8 m/s 17.1 knots

↑

-3.7 ~ 1.5°C 25.3 ~ 34.7°F

0.6 mm

0.4 cm

3.3 h

4.6 MJ/m²

0.8 mm

12/9

Overcast

-2.5 27.5

5.7°C 42.3°F

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

↑

-6.1 ~ 1.7°C 21 ~ 35.1°F

0 mm

0 cm

5.6 h

7.1 MJ/m²

1.1 mm

12/10

Overcast

1.8 35.2

10.7°C 51.3°F

29.9 km/h 18.6 mph 8.3 m/s 16.1 knots

↑

-2.9 ~ 8°C 26.8 ~ 46.4°F

0 mm

0 cm

5.4 h

5.2 MJ/m²

1 mm

12/11

Slight rain

8 46.4

19.9°C 67.8°F

64.4 km/h 40 mph 17.9 m/s 34.8 knots

↑

1.9 ~ 17.7°C 35.4 ~ 63.9°F

3.8 mm

0 cm

0 h

3.5 MJ/m²

1.1 mm

12/12

Overcast

1.1 34

8.6°C 47.5°F

56.9 km/h 35.4 mph 15.8 m/s 30.7 knots

↑

-2.6 ~ 3.7°C 27.3 ~ 38.7°F

0 mm

0 cm

8.3 h

9.9 MJ/m²

1.9 mm

12/13

Overcast

-2.5 27.5

10.2°C 50.4°F

16.2 km/h 10.1 mph 4.5 m/s 8.7 knots

↑

-6.1 ~ 7°C 21 ~ 44.6°F

0 mm

0 cm

8.3 h

9.7 MJ/m²

1.3 mm

12/14

Overcast

2.2 36

12.5°C 54.5°F

22.3 km/h 13.9 mph 6.2 m/s 12 knots

↑

-2.3 ~ 9.8°C 27.9 ~ 49.6°F

0 mm

0 cm

8.3 h

9.5 MJ/m²

1.6 mm

12/15

Overcast

0.9 33.6

13.2°C 55.8°F

23.8 km/h 14.8 mph 6.6 m/s 12.9 knots

↑

-2.3 ~ 11.2°C 27.9 ~ 52.2°F

0 mm

0 cm

6.7 h

7.6 MJ/m²

1.1 mm

12/16

Overcast

7.2 45

17.6°C 63.7°F

43.2 km/h 26.8 mph 12 m/s 23.3 knots

↑

3 ~ 14.6°C 37.4 ~ 58.3°F

0 mm

0 cm

8.2 h

9 MJ/m²

2.4 mm

12/17

Light drizzle

8.9 48

15.1°C 59.2°F

36.4 km/h 22.6 mph 10.1 m/s 19.7 knots

↑

6.8 ~ 11.7°C 44.2 ~ 53.1°F

0.8 mm

0 cm

5.2 h

6.6 MJ/m²

1.7 mm

12/18

Slight rain

8.4 47.1

13.4°C 56.1°F

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

↑

4.8 ~ 12.1°C 40.6 ~ 53.8°F

2.4 mm

0 cm

0 h

2.8 MJ/m²

1.1 mm

12/19

Moderate drizzle

-0.2 31.6

13.1°C 55.6°F

49 km/h 30.4 mph 13.6 m/s 26.5 knots

↑

-5.1 ~ 11.9°C 22.8 ~ 53.4°F

2.3 mm

0 cm

4.3 h

5.6 MJ/m²

1.3 mm

12/20

Overcast

-3.5 25.7

4.4°C 39.9°F

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

↑

-7.8 ~ 0.6°C 18 ~ 33.1°F

0 mm

0 cm

8.3 h

9.7 MJ/m²

1.2 mm

12/21

Light drizzle

-2.3 27.9

5.9°C 42.6°F

18.7 km/h 11.6 mph 5.2 m/s 10.1 knots

↑

-6.4 ~ 2.2°C 20.5 ~ 36°F

0.3 mm

0 cm

2.7 h

5.5 MJ/m²

0.8 mm

12/22

Light drizzle

-0.2 31.6

7.6°C 45.7°F

58.3 km/h 36.2 mph 16.2 m/s 31.5 knots

↑

-5.3 ~ 2°C 22.5 ~ 35.6°F

0.1 mm

0 cm

8.3 h

8.9 MJ/m²

1.6 mm

12/23

Overcast

-3.5 25.7

4.6°C 40.3°F

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

↑

-8 ~ 1.1°C 17.6 ~ 34°F

0 mm

0 cm

8.2 h

9.4 MJ/m²

1.3 mm

12/24

Overcast

2.3 36.1

15.4°C 59.7°F

39.2 km/h 24.4 mph 10.9 m/s 21.2 knots

↑

-3.2 ~ 12.4°C 26.2 ~ 54.3°F

0 mm

0 cm

7 h

8.5 MJ/m²

1.9 mm

12/25

Slight rain

9 48.2

19.5°C 67.1°F

43.9 km/h 27.3 mph 12.2 m/s 23.7 knots

↑

5.3 ~ 17.4°C 41.5 ~ 63.3°F

7.4 mm

0 cm

7 h

6.8 MJ/m²

1.7 mm

12/26

Partly cloudy

4.9 40.8

13.5°C 56.3°F

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

↑

1.1 ~ 11.3°C 34 ~ 52.3°F

0 mm

0 cm

8.4 h

9.5 MJ/m²

1.6 mm

12/27

Light drizzle

1.5 34.7

5.2°C 41.4°F

33.8 km/h 21 mph 9.4 m/s 18.3 knots

↑

-2.1 ~ 1.3°C 28.2 ~ 34.3°F

0.4 mm

0 cm

0.8 h

2.3 MJ/m²

0.6 mm

12/28

Light drizzle

3.9 39

12.3°C 54.1°F

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

↑

1.2 ~ 9.9°C 34.2 ~ 49.8°F

0.4 mm

0 cm

3.4 h

5 MJ/m²

1.1 mm

12/29

Slight rain

7.2 45

15.8°C 60.4°F

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

↑

5.3 ~ 15.1°C 41.5 ~ 59.2°F

5 mm

0 cm

5.7 h

6 MJ/m²

1 mm

12/30

Slight rain

8 46.4

11.5°C 52.7°F

22.7 km/h 14.1 mph 6.3 m/s 12.3 knots

↑

6.7 ~ 10.5°C 44.1 ~ 50.9°F

6.7 mm

0 cm

0 h

2.3 MJ/m²

0.4 mm

12/31

Slight rain

7.4 45.3

14.4°C 57.9°F

29.9 km/h 18.6 mph 8.3 m/s 16.1 knots

↑

6 ~ 12.7°C 42.8 ~ 54.9°F

1.6 mm

0 cm

2.7 h

4.5 MJ/m²

0.7 mm

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Monthly Statistics

32.5 mm

Total Precipitation

0.4 cm

Total Snowfall

9.5 hour

Average Daily Daylight Duration

5.5 hour

Average Daily Sunshine Duration

-3.5 °C 25.7 °F

Minimum Temperature

19.9 °C 67.8 °F

Maximum Temperature

Location Map

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