Best time to visit Monona, WI

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

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

January Cold
High
27.7°F
Low
11.1°F
Precip
1.67 in

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

Daylight ≈ 9h 9m

February Cold
High
31.5°F
Low
14.0°F
Precip
1.71 in

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

Daylight ≈ 10h 18m

March Cold
High
44.0°F
Low
24.7°F
Precip
2.34 in

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

Daylight ≈ 11h 42m

April Cool
High
57.4°F
Low
35.7°F
Precip
4.22 in

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

Daylight ≈ 13h 11m

May Good
High
69.2°F
Low
47.4°F
Precip
4.55 in

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

Daylight ≈ 14h 28m

June Wet
High
78.4°F
Low
57.1°F
Precip
5.74 in

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

Daylight ≈ 15h 8m

July Good
High
82.2°F
Low
61.4°F
Precip
4.70 in

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

Daylight ≈ 14h 53m

August Good
High
80.6°F
Low
59.4°F
Precip
4.08 in

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

Daylight ≈ 13h 46m

September Excellent
High
73.9°F
Low
50.7°F
Precip
3.92 in

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

Daylight ≈ 12h 17m

October Good
High
61.1°F
Low
39.4°F
Precip
2.99 in

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

Daylight ≈ 10h 47m

November Cool
High
46.1°F
Low
28.5°F
Precip
2.34 in

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

Daylight ≈ 9h 29m

December Cold
High
33.0°F
Low
17.8°F
Precip
1.92 in

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

Daylight ≈ 8h 50m

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