Best time to visit Fairfax, IA

A month-by-month travel weather guide based on NOAA 30-year climate normals.

The most comfortable travel window in Fairfax runs from July through October — 4 months of pleasant temperatures and modest rainfall.

January Cold
High
27.9°F
Low
11.3°F
Precip
0.95 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 9h 16m

February Cold
High
32.6°F
Low
15.5°F
Precip
1.22 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 10h 22m

March Cool
High
46.3°F
Low
26.8°F
Precip
1.99 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 11h 43m

April Cool
High
60.1°F
Low
37.6°F
Precip
3.56 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 13h 9m

May Good
High
71.1°F
Low
49.5°F
Precip
4.25 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 22m

June Wet
High
80.1°F
Low
59.7°F
Precip
5.56 in

Frequent rain. Bring waterproof gear; outdoor plans need flexibility.

Daylight ≈ 15h 0m

July Good
High
82.8°F
Low
62.7°F
Precip
4.41 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 14h 46m

August Good
High
81.2°F
Low
60.4°F
Precip
4.07 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 13h 42m

September Excellent
High
74.7°F
Low
51.9°F
Precip
3.40 in

Sweet spot — comfortable highs in the 65-80°F range, mild nights, low rain. Ideal for nearly any outdoor plan.

Daylight ≈ 12h 16m

October Good
High
61.5°F
Low
39.9°F
Precip
2.91 in

Comfortable for most activities. Bring layers; nights can be cool.

Daylight ≈ 10h 50m

November Cool
High
46.2°F
Low
27.7°F
Precip
2.00 in

Mild but on the chilly side. Pack a jacket; great for hiking and city walks.

Daylight ≈ 9h 35m

December Cold
High
33.3°F
Low
17.1°F
Precip
1.59 in

Winter weather. Plan around weather; good for snow sports if applicable.

Daylight ≈ 8h 58m

Looking for similar climates? See Fairfax's climate twins. Or jump straight to the full climate profile.