Herndon Weather in April

April in Herndon brings pleasant temperatures, with highs of 19°C (66°F) and nights dropping to 7°C (45°F). Rainfall is on the higher side this month, averaging around 88 mm (3.5 in), so keep a rain jacket handy.

Rainfall in Herndon in April

Records from the past 30 years suggest around 12 days of rain, with 88 mm (3.5 in) average for the month. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Herndon in April

Expect highs of 19°C (66°F) in Herndon in April, with nights dropping to around 7°C (45°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.

Sunshine in Herndon in April

There are approximately 227 hours of sunshine this month, resulting in mostly clear days.

If you're a fan of comfortable temperatures and drier conditions, April is a great time to visit.