April weather forecast and Climate
Washington, DC US

• Average high temperature in April: 19.2°C

Warmest month (with highest average high temperature) is July (31.3°C).
Month with lowest average high temperature is January (6.3°C).

• Average low temperature in April: 8.3°C

Month with highest average low temperature is July (21.7°C).
Coldest month (with lowest average low temperature) is January (-1.9°C).

• Average humidity in April: 58%

Month with highest relative humidity is September (69.7%).
Month with lowest relative humidity is April (58%).

• Average rainfall in April: 77.7mm

Wettest month (with highest rainfall) is May (101.3mm).
Driest month (with lowest rainfall) is February (66.5mm).

• Average rainfall days in April: 10.4 days

Month with highest number of rainy days is May (11.1 days).
Month with lowest number of rainy days is October (7.7 days).

• Average snowfall in April: 0mm

Month with highest snowfall is February (144.8mm).
Months with lowest snowfall are April, May, June, July, August, September and October (0mm).

• Average snowfall days in April: 0.1 days

Month with highest number of snowfall days is January (3 days).
Months with lowest number of snowfall days are May, June, July, August, September and October (0 days).

• Average daylight in April: 13h

Months with longest days are June and July (Average daylight: 15h).
Month with shortest days is December (Average daylight: 9h).

• Average sunshine in April: 7.6h

Month with most sunshine is June (Average sunshine: 9.4h).
Month with least sunshine is December (Average sunshine: 4.3h).

• Average UV index in April: 7

Months with highest UV index are June and July (UV index 9).
Months with lowest UV index are January and December (UV index 2).