Best Time to Drive: Manassas, VA to Fairfax, VA

The best overall window to drive from Manassas, VA to Fairfax, VA is March to November. April is especially comfortable, and 7 AM to 10 AM is usually the easiest departure window. The main things to watch are winter mix risk.

Best overall window

March to November

This stretch gives the steadiest mix of comfort, daylight, and lower weather friction.

Easiest departure pattern

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Most challenging stretch

December

January is one of the harder months for this route because the weather friction stacks up faster.

Why This Route Scores Differently

This is a same-day corridor, so departure timing matters almost as much as the month you choose.

The current best window is March to November, when the drive is more likely to feel steady end to end.

This score uses multiple NOAA sample points along the route instead of a single state-wide climate average.

Month-by-Month Driving Conditions

Jan

Fair 35°F

Feb

Fair 37°F

Mar

Great 45°F

Apr

Excellent 56°F

May

Excellent 65°F

Jun

Excellent 74°F

Jul

Good 79°F

Aug

Great 77°F

Sep

Excellent 69°F

Oct

Excellent 58°F

Nov

Good 47°F

Dec

Good 39°F

Best Good/Fair Challenging

Average Conditions by Month

January

Avg high / low 44 / 26°F

Moisture 1.1 in rain

Rating Fair

Best departure

9 AM to 12 PM

Winter mix risk

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

February

Avg high / low 48 / 27°F

Moisture 0.9 in rain

Rating Fair

Best departure

9 AM to 12 PM

Steady driving window

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

March

Avg high / low 56 / 34°F

Moisture 1.3 in rain

Rating Great

Best departure

9 AM to 12 PM

Steady driving window

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

April

Avg high / low 67 / 44°F

Moisture 1.1 in rain

Rating Excellent

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Rain disruption is usually limited compared with wetter months.

May

Avg high / low 75 / 54°F

Moisture 1.3 in rain

Rating Excellent

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Rain disruption is usually limited compared with wetter months.

June

Avg high / low 84 / 64°F

Moisture 1.5 in rain

Rating Excellent

Best departure

7 AM to 10 AM

Steady driving window

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

July

Avg high / low 88 / 69°F

Moisture 1.5 in rain

Rating Good

Best departure

7 AM to 10 AM

Warm afternoons Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

August

Avg high / low 86 / 67°F

Moisture 1.6 in rain

Rating Great

Best departure

7 AM to 10 AM

Warm afternoons

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

September

Avg high / low 79 / 59°F

Moisture 1.5 in rain

Rating Excellent

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Rain disruption is usually limited compared with wetter months.

October

Avg high / low 68 / 47°F

Moisture 1.1 in rain

Rating Excellent

Best departure

7 AM to 10 AM

Steady driving window

Daytime temperatures usually stay in a comfortable driving range.

Rain disruption is usually limited compared with wetter months.

November

Avg high / low 58 / 36°F

Moisture 1 in rain

Rating Good

Best departure

7 AM to 10 AM

Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

December

Avg high / low 48 / 30°F

Moisture 1.2 in rain

Rating Good

Best departure

9 AM to 12 PM

Holiday traffic

Temperatures are workable, but not as easy as the best shoulder-season windows.

Rain disruption is usually limited compared with wetter months.

Seasonal Hazards on This Route

Winter mix risk

Jan

Even light snow or freezing precipitation can matter more than usual when this route turns into a same-day commitment.

Tropical weather window

Jun - Nov

Track tropical systems and leftover Gulf moisture closely, especially if your travel day is not flexible.

Best Departure Time by Season

Spring

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Summer

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Fall

7 AM to 10 AM

This is short enough that a mid-morning departure still keeps the whole drive comfortable.

Winter

9 AM to 12 PM

Waiting for a little daylight and warmer pavement usually makes the drive easier.

How This Score Was Built

Source

Route-sampled NOAA climate normals

High confidence. Built from 3 NOAA-backed route checkpoints rather than a single statewide estimate.

Origin zone

Southeast

Destination zone

Southeast

Route sample points

Late route

Late route checkpoint

VA MANASSAS (1.5 mi away)

Late route

Late route checkpoint

VA MANASSAS (5.2 mi away)

Destination

Fairfax, VA

VA statewide fallback (0 mi away)

Ready to plan? See the full trip plan from Manassas, VA to Fairfax, VA with stops, fuel costs, and directions.

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