Fairfax County, Virginia, United States of America: What to pack, what to wear, and when to go [2021]

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Traveling to Fairfax County, Virginia, United States of America? If you're planning to go to Fairfax County, here is some important information about when to go, what to wear, and what to pack.

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When to go to Fairfax County, Virginia, United States of America

Based on the climate and weather in Fairfax County, the best time to go is September. See below for details.

Important esssentials for Fairfax County, Virginia, United States of America

Here are some general tips on what to wear in Fairfax County, as well as several items to remember to pack when traveling there.

What to wear/what to pack for Fairfax County, Virginia, United States of America by month

January

If you go to Fairfax County in January, you will notice that it is pretty cool. Expect it to rain or snow 5-10 days this month. Daytime temperatures are in the low 40s F (single digits C).

What to wear/what to pack:

February

February in Fairfax County is brisk. The average overnight temperatures in the area are in the 20s F (single digits below 0 C).

What to wear/what to pack:

March

March in Fairfax County can be brisk. The rain can amount to several inches/centimeters. During this time, temperatures average in the low 40s F (single digits C) to 50s F (low 10s C).

What to wear/what to pack:

April

If you vacation in Fairfax County during April, you will probably find that it is balmy. Temperatures tend to hover around the high 60s F (low 10s C) during the day, while at night they can dip into the low 40s F (single digits C).

In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

May

If you visit Fairfax County during May, you might see that it is warm. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the low 50s F (low 10s C).

In terms of precipitation, you can expect it to rain regularly.

What to wear/what to pack:

June

Traveling to Fairfax County in June, you will notice that it is extremely warm. Expect it to rain regularly. Daytime temperatures are in the 80s F (high 20s C).

What to wear/what to pack:

July

Traveling to Fairfax County in July, you will notice that it is really hot. Expect it to rain 5-10 days this month. Daytime temperatures are in the high 80s F (low 30s C).

What to wear/what to pack:

August

August in Fairfax County is really hot. The rain can amount to several inches/centimeters. During this time, temperatures average in the 70s F (mid 20s C) to 80s F (low 30s C).

What to wear/what to pack:

September

If you visit Fairfax County during September, you will probably find that it is a perfect temperature. Temperatures tend to hover around the high 70s F (mid 20s C) during the day, while at night they can dip into the high 50s F (mid 10s C).

In terms of precipitation, you can expect it to rain 5-10 days this month.

What to wear/what to pack:

October

If you vacation in Fairfax County during October, you will probably notice that it is mild. Temperatures tend to hover around the high 60s F (low 20s C) during the day, while at night they can dip into the 40s F (single digits C).

In terms of precipitation, you can expect it to rain occasionally.

What to wear/what to pack:

November

November is cool. Temperatures average in the 50s F (low 10s C) during the day. It rains about a third of the time.

What to wear/what to pack:

December

December in Fairfax County can be brisk. The rain/snow can amount to several inches/centimeters.

During this time, temperatures average in the 40s F (single digits C), although night temperatures can dip into the single digits F (10+ below zero C).

What to wear/what to pack:

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