Best time to visit Hannibal, MO

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

The most comfortable travel window in Hannibal runs from April through October — 7 months of pleasant temperatures and modest rainfall.

January Cold
High
34.6°F
Low
17.9°F
Precip
2.11 in

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

Daylight ≈ 9h 29m

February Cold
High
39.6°F
Low
21.6°F
Precip
2.25 in

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

Daylight ≈ 10h 30m

March Cool
High
51.4°F
Low
32.0°F
Precip
2.76 in

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

Daylight ≈ 11h 44m

April Good
High
63.7°F
Low
42.8°F
Precip
4.33 in

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

Daylight ≈ 13h 3m

May Good
High
73.3°F
Low
54.0°F
Precip
4.96 in

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

Daylight ≈ 14h 11m

June Good
High
82.1°F
Low
63.5°F
Precip
4.91 in

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

Daylight ≈ 14h 46m

July Good
High
85.7°F
Low
67.3°F
Precip
4.11 in

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

Daylight ≈ 14h 33m

August Good
High
84.4°F
Low
65.2°F
Precip
3.92 in

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

Daylight ≈ 13h 34m

September Excellent
High
77.9°F
Low
56.9°F
Precip
3.53 in

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

Daylight ≈ 12h 15m

October Good
High
65.7°F
Low
44.9°F
Precip
3.39 in

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

Daylight ≈ 10h 55m

November Cool
High
51.5°F
Low
33.5°F
Precip
2.82 in

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

Daylight ≈ 9h 46m

December Cold
High
39.3°F
Low
23.4°F
Precip
2.19 in

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

Daylight ≈ 9h 12m

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