In Leesburg, the average percentage of the sky covered by clouds experiences mild seasonal variation over the course of the year. The clearer part of the year in Leesburg begins around July 1 and lasts for 4.3 months, ending around November 11.
Hartsdale Weather Forecast for Wednesday, August 23. Countries/United States/ New York/ Hartsdale. The Hartsdale, NY forecast for Aug 23 is 82 degrees and Partly cloudy . There is 42 percentage chance of rain and 9 mph winds from the Northwest.
Key weather averages for New York City in September. 1  24. 24Â°C max day temperature. 2  7. 7 hours of sunshine per day. 3  8. 8 days with some rainfall. 4  16. 16Â°C min night temperature. 5  12. 12 hours of daylight per day. 6  0. No heat & humidity. 7  92. 92 mm of monthly rainfall. 8  6. 6 (High) UV index. 9  21. 21Â°C sea temperature.