Best time to visit Arnold, PA

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

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

January Cold
High
36.5°F
Low
20.5°F
Precip
3.12 in

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

Daylight ≈ 9h 24m

February Cold
High
40.0°F
Low
21.0°F
Precip
2.79 in

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

Daylight ≈ 10h 27m

March Cool
High
49.5°F
Low
27.1°F
Precip
3.27 in

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

Daylight ≈ 11h 43m

April Good
High
62.5°F
Low
38.3°F
Precip
3.58 in

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

Daylight ≈ 13h 5m

May Excellent
High
71.9°F
Low
50.0°F
Precip
3.90 in

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

Daylight ≈ 14h 16m

June Good
High
79.6°F
Low
58.9°F
Precip
4.34 in

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

Daylight ≈ 14h 51m

July Good
High
83.4°F
Low
63.4°F
Precip
4.26 in

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

Daylight ≈ 14h 38m

August Good
High
82.3°F
Low
61.7°F
Precip
3.55 in

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

Daylight ≈ 13h 37m

September Excellent
High
76.1°F
Low
54.6°F
Precip
3.99 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
63.9°F
Low
43.2°F
Precip
3.09 in

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

Daylight ≈ 10h 53m

November Cool
High
51.9°F
Low
32.6°F
Precip
3.09 in

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

Daylight ≈ 9h 42m

December Cold
High
41.0°F
Low
25.7°F
Precip
3.26 in

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

Daylight ≈ 9h 7m

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