About 66 days of sunshine. The remaining 299 days consist of 97 partly cloudy and 202 cloudy days. Yes, 202 cloudy days! We've gone 2 weeks straight (usually in the winter) without seeing so much as a spec of sunshine.
Percentage-wise that breaks down to:
18% Sunny days
27% Partly Cloudy days
55% Cloudy days
Keep in mind too that during December, January and February we only have 9 sunny days on average throughout the entire 3 month span. (9 sunny days vs. 68 cloudy days). That's only 3 days per month folks. Not good.
Only 4 other major US cities have less sunshine than Cleveland (Seattle, Portland, Buffalo and Pittsburgh).
Here are 2 links that this information came from:
www.weathertoday.net/weatherf...loudy_desc.php
lwf.ncdc.noaa.gov/oa/climate/.../ccd/cldy.html