Reston, us-Virginia State, USA in December 2017 Historical Weather Query

Temperature Unit：

Wind Speed Unit：

Monday	Tuesday	Wednesday	Thursday	Friday	Saturday	Sunday
				1 4 39.2 ~ 11.6°C 52.9°F Sunrise: 07:09 Sunset: 16:47	2 0.2 32.4 ~ 9.4°C 48.9°F Sunrise: 07:10 Sunset: 16:47	3 2.8 37 ~ 11.7°C 53.1°F Sunrise: 07:11 Sunset: 16:47
4 0.6 33.1 ~ 11°C 51.8°F Sunrise: 07:12 Sunset: 16:46	5 5.9 42.6 ~ 16.4°C 61.5°F Sunrise: 07:13 Sunset: 16:46	6 3.5 38.3 ~ 12.2°C 54°F Sunrise: 07:14 Sunset: 16:46	7 1.4 34.5 ~ 7.7°C 45.9°F Sunrise: 07:15 Sunset: 16:46	8 -0.2 31.6 ~ 3.1°C 37.6°F Sunrise: 07:15 Sunset: 16:46	9 -2.8 27 ~ 1.4°C 34.5°F Sunrise: 07:16 Sunset: 16:46	10 -3.3 26.1 ~ 3.1°C 37.6°F Sunrise: 07:17 Sunset: 16:46
11 -3.3 26.1 ~ 7°C 44.6°F Sunrise: 07:18 Sunset: 16:47	12 -5.4 22.3 ~ 8.4°C 47.1°F Sunrise: 07:19 Sunset: 16:47	13 -6.4 20.5 ~ 0.6°C 33.1°F Sunrise: 07:19 Sunset: 16:47	14 -3 26.6 ~ 3.8°C 38.8°F Sunrise: 07:20 Sunset: 16:47	15 -4.8 23.4 ~ -1°C 30.2°F Sunrise: 07:21 Sunset: 16:47	16 -3.7 25.3 ~ 7.1°C 44.8°F Sunrise: 07:21 Sunset: 16:48	17 -2.5 27.5 ~ 9.7°C 49.5°F Sunrise: 07:22 Sunset: 16:48
18 1.9 35.4 ~ 12.8°C 55°F Sunrise: 07:22 Sunset: 16:48	19 5.6 42.1 ~ 14.1°C 57.4°F Sunrise: 07:23 Sunset: 16:49	20 1 33.8 ~ 8.8°C 47.8°F Sunrise: 07:24 Sunset: 16:49	21 -2.2 28 ~ 6.4°C 43.5°F Sunrise: 07:24 Sunset: 16:50	22 0.3 32.5 ~ 11.8°C 53.2°F Sunrise: 07:25 Sunset: 16:50	23 4.9 40.8 ~ 15.5°C 59.9°F Sunrise: 07:25 Sunset: 16:51	24 1.2 34.2 ~ 6.2°C 43.2°F Sunrise: 07:25 Sunset: 16:51
25 -2.5 27.5 ~ 2.7°C 36.9°F Sunrise: 07:26 Sunset: 16:52	26 -3.7 25.3 ~ 2°C 35.6°F Sunrise: 07:26 Sunset: 16:53	27 -8.1 17.4 ~ -1.1°C 30°F Sunrise: 07:27 Sunset: 16:53	28 -9.9 14.2 ~ -4.8°C 23.4°F Sunrise: 07:27 Sunset: 16:54	29 -8.4 16.9 ~ -0.2°C 31.6°F Sunrise: 07:27 Sunset: 16:55	30 -7 19.4 ~ 0.4°C 32.7°F Sunrise: 07:27 Sunset: 16:56	31 -10.2 13.6 ~ -6°C 21.2°F Sunrise: 07:27 Sunset: 16:56

Reston, us-Virginia State, USA December 2017, including Minimum Temperature, Maximum Temperature, Total Precipitation, Total Snowfall, Rainy Days, Snowy Days, Maximum Wind Speed etc. Minimum Temperature is -10.2 °C, Maximum Temperature is 16.4 °C, Total Precipitation is 34 mm, Total Snowfall is 9.4 cm, Rainy Days is 8 days, Snowy Days is 10 days, Maximum Wind Speed is 71.3 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

Overcast

4 39.2

11.6°C 52.9°F

34.6 km/h 21.5 mph 9.6 m/s 18.7 knots

↑

0.5 ~ 8.3°C 32.9 ~ 46.9°F

0 mm

0 cm

8.6 h

10.2 MJ/m²

1.4 mm

12/2

Overcast

0.2 32.4

9.4°C 48.9°F

23 km/h 14.3 mph 6.4 m/s 12.4 knots

↑

-3.1 ~ 6.5°C 26.4 ~ 43.7°F

0 mm

0 cm

7.3 h

5.5 MJ/m²

0.8 mm

12/3

Light drizzle

2.8 37

11.7°C 53.1°F

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

↑

-0.1 ~ 8.7°C 31.8 ~ 47.7°F

1 mm

0 cm

8.2 h

9.6 MJ/m²

1.2 mm

12/4

Overcast

0.6 33.1

11°C 51.8°F

30.6 km/h 19 mph 8.5 m/s 16.5 knots

↑

-2.1 ~ 7.5°C 28.2 ~ 45.5°F

0 mm

0 cm

8.2 h

8.5 MJ/m²

1.2 mm

12/5

Slight rain

5.9 42.6

16.4°C 61.5°F

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

↑

3 ~ 15.7°C 37.4 ~ 60.3°F

4.8 mm

0 cm

5.3 h

6.4 MJ/m²

1 mm

12/6

Light drizzle

3.5 38.3

12.2°C 54°F

55.4 km/h 34.4 mph 15.4 m/s 29.9 knots

↑

-2 ~ 10.6°C 28.4 ~ 51.1°F

0.3 mm

0 cm

5.1 h

7.5 MJ/m²

1.8 mm

12/7

Overcast

1.4 34.5

7.7°C 45.9°F

38.5 km/h 23.9 mph 10.7 m/s 20.8 knots

↑

-2.9 ~ 3°C 26.8 ~ 37.4°F

0 mm

0 cm

8.2 h

8.9 MJ/m²

1.6 mm

12/8

Slight snow

-0.2 31.6

3.1°C 37.6°F

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

↑

-5 ~ 0°C 23 ~ 32°F

0.2 mm

0.1 cm

1.5 h

3.9 MJ/m²

0.8 mm

12/9

Moderate snow

-2.8 27

1.4°C 34.5°F

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

↑

-6.5 ~ -1.3°C 20.3 ~ 29.7°F

8.1 mm

5.7 cm

0 h

1.5 MJ/m²

0.3 mm

12/10

Overcast

-3.3 26.1

3.1°C 37.6°F

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

↑

-8.2 ~ -1.6°C 17.2 ~ 29.1°F

0 mm

0 cm

8.3 h

9.7 MJ/m²

1.1 mm

12/11

Slight snow

-3.3 26.1

7°C 44.6°F

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

↑

-7.7 ~ 3.6°C 18.1 ~ 38.5°F

0.3 mm

0.2 cm

8.2 h

9.7 MJ/m²

1.3 mm

12/12

Overcast

-5.4 22.3

8.4°C 47.1°F

65.2 km/h 40.5 mph 18.1 m/s 35.2 knots

↑

-12 ~ 3.6°C 10.4 ~ 38.5°F

0 mm

0 cm

4.2 h

5.4 MJ/m²

1.4 mm

12/13

Slight snow

-6.4 20.5

0.6°C 33.1°F

59.8 km/h 37.2 mph 16.6 m/s 32.3 knots

↑

-13.3 ~ -4.5°C 8.1 ~ 23.9°F

0.4 mm

0.3 cm

8.2 h

9.9 MJ/m²

1.6 mm

12/14

Slight snow

-3 26.6

3.8°C 38.8°F

66.2 km/h 41.1 mph 18.4 m/s 35.7 knots

↑

-7.5 ~ -1.9°C 18.5 ~ 28.6°F

0.1 mm

0.1 cm

7.2 h

8.7 MJ/m²

1.6 mm

12/15

Moderate snow

-4.8 23.4

-1°C 30.2°F

23.4 km/h 14.5 mph 6.5 m/s 12.6 knots

↑

-9 ~ -4.8°C 15.8 ~ 23.4°F

1.3 mm

0.9 cm

0.8 h

2 MJ/m²

0.4 mm

12/16

Partly cloudy

-3.7 25.3

7.1°C 44.8°F

45 km/h 28 mph 12.5 m/s 24.3 knots

↑

-8.7 ~ 1.9°C 16.3 ~ 35.4°F

0 mm

0 cm

8.2 h

8.8 MJ/m²

1.4 mm

12/17

Light drizzle

-2.5 27.5

9.7°C 49.5°F

20.9 km/h 13 mph 5.8 m/s 11.3 knots

↑

-5.9 ~ 7.2°C 21.4 ~ 45°F

0.1 mm

0 cm

5 h

6.1 MJ/m²

0.8 mm

12/18

Overcast

1.9 35.4

12.8°C 55°F

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

↑

-0.5 ~ 10°C 31.1 ~ 50°F

0 mm

0 cm

7 h

8.6 MJ/m²

1.2 mm

12/19

Overcast

5.6 42.1

14.1°C 57.4°F

31.3 km/h 19.4 mph 8.7 m/s 16.9 knots

↑

3.4 ~ 10.5°C 38.1 ~ 50.9°F

0 mm

0 cm

8 h

8.3 MJ/m²

1.5 mm

12/20

Overcast

1 33.8

8.8°C 47.8°F

38.9 km/h 24.2 mph 10.8 m/s 21 knots

↑

-2.9 ~ 5.1°C 26.8 ~ 41.2°F

0 mm

0 cm

3.3 h

5.7 MJ/m²

1.5 mm

12/21

Overcast

-2.2 28

6.4°C 43.5°F

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

↑

-6 ~ 3.5°C 21.2 ~ 38.3°F

0 mm

0 cm

8.3 h

9.3 MJ/m²

1.1 mm

12/22

Light drizzle

0.3 32.5

11.8°C 53.2°F

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

↑

-4 ~ 8.8°C 24.8 ~ 47.8°F

0.2 mm

0 cm

6.8 h

7.2 MJ/m²

1.3 mm

12/23

Moderate rain

4.9 40.8

15.5°C 59.9°F

71.3 km/h 44.3 mph 19.8 m/s 38.5 knots

↑

0.8 ~ 13.3°C 33.4 ~ 55.9°F

13.5 mm

0 cm

0 h

1.1 MJ/m²

0.3 mm

12/24

Light drizzle

1.2 34.2

6.2°C 43.2°F

38.2 km/h 23.7 mph 10.6 m/s 20.6 knots

↑

-2.6 ~ 2.6°C 27.3 ~ 36.7°F

0.6 mm

0 cm

4.7 h

5.2 MJ/m²

0.8 mm

12/25

Moderate snow

-2.5 27.5

2.7°C 36.9°F

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

↑

-8.4 ~ -0.7°C 16.9 ~ 30.7°F

0.6 mm

0.3 cm

8.4 h

9.8 MJ/m²

1.6 mm

12/26

Overcast

-3.7 25.3

2°C 35.6°F

40 km/h 24.9 mph 11.1 m/s 21.6 knots

↑

-9.1 ~ -3.6°C 15.6 ~ 25.5°F

0 mm

0 cm

8.4 h

9.2 MJ/m²

1.3 mm

12/27

Slight snow

-8.1 17.4

-1.1°C 30°F

38.9 km/h 24.2 mph 10.8 m/s 21 knots

↑

-14.3 ~ -5.6°C 6.3 ~ 21.9°F

0.4 mm

0.3 cm

4.6 h

6.2 MJ/m²

0.9 mm

12/28

Overcast

-9.9 14.2

-4.8°C 23.4°F

40.7 km/h 25.3 mph 11.3 m/s 22 knots

↑

-15.7 ~ -10.2°C 3.7 ~ 13.6°F

0 mm

0 cm

8.2 h

9.6 MJ/m²

1 mm

12/29

Overcast

-8.4 16.9

-0.2°C 31.6°F

44.6 km/h 27.7 mph 12.4 m/s 24.1 knots

↑

-13.1 ~ -6.3°C 8.4 ~ 20.7°F

0 mm

0 cm

8.4 h

9.4 MJ/m²

1.1 mm

12/30

Moderate snow

-7 19.4

0.4°C 32.7°F

45.4 km/h 28.2 mph 12.6 m/s 24.5 knots

↑

-12.3 ~ -4.3°C 9.9 ~ 24.3°F

1.7 mm

1.3 cm

4.7 h

6.2 MJ/m²

0.9 mm

12/31

Slight snow

-10.2 13.6

-6°C 21.2°F

40.3 km/h 25 mph 11.2 m/s 21.8 knots

↑

-15.7 ~ -12.1°C 3.7 ~ 10.2°F

0.4 mm

0.3 cm

5.1 h

6.1 MJ/m²

1 mm

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Monthly Statistics

34.0 mm

Total Precipitation

9.4 cm

Total Snowfall

9.5 hour

Average Daily Daylight Duration

6.1 hour

Average Daily Sunshine Duration

-10.2 °C 13.6 °F

Minimum Temperature

16.4 °C 61.5 °F

Maximum Temperature

Location Map

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