Best time to visit Merwin, MO

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

The most comfortable travel window in Merwin runs from September through October — 2 months of pleasant temperatures and modest rainfall.

January Cold
High
40.1°F
Low
19.8°F
Precip
1.61 in

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

Daylight ≈ 9h 36m

February Cool
High
45.7°F
Low
23.5°F
Precip
1.95 in

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

Daylight ≈ 10h 34m

March Cool
High
56.4°F
Low
33.2°F
Precip
2.76 in

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

Daylight ≈ 11h 45m

April Good
High
66.2°F
Low
43.2°F
Precip
4.55 in

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

Daylight ≈ 13h 0m

May Wet
High
75.7°F
Low
55.0°F
Precip
6.26 in

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

Daylight ≈ 14h 5m

June Wet
High
84.7°F
Low
64.9°F
Precip
5.62 in

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

Daylight ≈ 14h 38m

July Hot
High
89.5°F
Low
69.1°F
Precip
4.37 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 14h 26m

August Hot
High
88.4°F
Low
66.4°F
Precip
3.75 in

Summer heat. Avoid midday exertion; aim for morning and evening activities.

Daylight ≈ 13h 30m

September Good
High
80.8°F
Low
57.4°F
Precip
4.31 in

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

Daylight ≈ 12h 14m

October Good
High
70.0°F
Low
45.0°F
Precip
3.45 in

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

Daylight ≈ 10h 58m

November Cool
High
55.8°F
Low
33.5°F
Precip
2.86 in

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

Daylight ≈ 9h 52m

December Cold
High
44.6°F
Low
24.5°F
Precip
2.10 in

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

Daylight ≈ 9h 20m

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