Sunshine & Daylight Hours in Washington, District Of Columbia, Usa

• Average sunlight hours in Washington, District Of Columbia range from 4h 38' for every day in December to 9h 48' per day in June.
• The longest day of the year is 14h 43' long and the shortest day is 9h 16' long.
• The longest day is 5h 27' longer than the shortest day.
• There is an average of 2601 hours of sunlight per year (of a possible 4383) with an average of 7:07 of sunlight per day.
• It is sunny 59.3% of daylight hours. The remaining 40.7% of daylight hours are likely cloudy or with shade, haze or low sun intensity.
• At midday the sun is on average 51.5° above the horizon at Washington, District Of Columbia.
• The summer solstice is on June 21st (the northern solstice) when the sun reaches it's highest point 74.58° above the horizon.
• The winter solstice is on December 21st (the southern solstice) when the midday sun is at it's lowest point of 27.74° above the horizon.