Best year time to visit Reston

General weather information about Reston

Average annual temperature is 5.0 °C

Absolute maximum temperature: 32.8 °C

Absolute minimum temperature: -33.4 °C

Number of sunny days: 206 days

Number of rainy days: 110 days

Number of snow days: 49 days

Look at detailed online map of Reston

* Weather data for Reston Canada is based on climate observations for 2026 year

Reston air temperature forecast for each month

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Absolute maximum temperature (°C)	2.3	5.0	2.8	22.3	28.0	31.8	32.8	31.1	31.6	19.4	9.0	6.1
Average daytime temperature (°C)	-6.3	-4.8	-4.3	6.6	22.5	26.4	25.5	25.6	22.1	9.9	3.0	-0.3
Average temperature (°C)	-10.5	-10.8	-10.5	0.5	14.8	20.6	19.1	19.4	16.1	5.7	-1.1	-4.5
Average night temperature (°C)	-13.7	-15.8	-15.7	-4.6	8.3	14.8	13.2	14.5	11.0	2.2	-4.0	-7.8
Absolute minimum temperature (°C)	-27.0	-33.4	-25.1	-18.4	-2.2	8.3	8.0	10.7	3.8	-13.4	-14.0	-15.0

Reston monthly weather indicators

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Daylight maximum duration (h)	9.0	10.0	12.0	14.0	15.0	16.0	16.0	15.0	13.0	11.0	9.0	8.0
Daylight mean duration (h)	8.7	10.1	11.9	13.8	15.4	16.2	15.8	14.4	12.6	10.8	9.1	8.2
Daylight minimum duration (h)	8.0	9.0	10.0	12.0	14.0	15.0	15.0	13.0	11.0	9.0	8.0	8.0
Sunshine mean duration (h)	3.5	6.9	8.3	8.7	11.1	13.1	12.6	10.4	9.0	5.5	5.1	5.9
Precipitation (mm)	10	8	14	59	60	40	32	54	29	65	16	15
Sunny days	20	16	22	15	17	11	15	15	18	14	17	26
Rainy days	4	1	0	10	14	19	16	16	12	11	6	1
Snow days	7	11	9	5	0	0	0	0	0	6	7	4

Reston - weather forecast by months

Reston weather in january Reston weather in february Reston weather in march Reston weather in april Reston weather in may Reston weather in june Reston weather in july Reston weather in august Reston weather in september Reston weather in october Reston weather in november Reston weather in december

Best time to visit Reston:

The best time to visit Reston during the most sunny months:

May — 11.1(h)
June — 13.1(h)
July — 12.6(h)
August — 10.4(h)

Months with the longest average daylight duration in Reston:

May — 15.4(h)
June — 16.2(h)
July — 15.8(h)

The largest precipitation sum in Reston is at

April — 59(mm)

May — 60(mm)

August — 54(mm)

October — 65(mm)

Weather forecast in the closest to Reston admin centers