Lions Outdoor History in the Schwartz Era
2009: 0-6
10/4: Chicago, L 48-24, 52f Mostly Cloudy
10/18: Green Bay, L 26-0, 43f Fair
11/8: Seattle, L 32-20, 50f Overcast
12/6: Cincinnati, L 23-13, 33f Fair
12/13: Baltimore, L 48-3, 32f Light Rain
12/27: San Francisco, L 20-6, 54f Mostly Cloudy
2010: 2-4
9/12: Chicago, L 19-14, 73f Fair
10/3: Green Bay, L 28-26, 52f A Few Clouds
10/17: NY Giants, L 28-20, 63f Fair
11/14: Buffalo, L 14-12, 58f Mostly Cloudy
12/19: Tampa Bay, W 23-20, 54f Overcast
12/26: Miami, W 34-27, 66f Fair and Breezy
2011: 3-2
9/11: Tampa Bay, W 27-20, 88f Partly Cloudy
10/30: Denver, W 45-10, 59f A Few Clouds
11/13: Chicago, L 37-13, 71f Mostly Cloudy
12/18: Oakland, W 28-27, 51f Mostly Cloudy
1/1: Green Bay, L 45-41, 30f Overcast
2012: 2-4
9/16: San Francisco, L 27-19, 62f Fair
9/23: Tennessee, L 44-41 OT, 68f A Few Clouds
10/14: Philadelphia, W 26-23 OT, 73f Mostly Cloudy
10/22: Chicago, L 13-7, 66f Overcast
11/4: Jacksonville, W 31-14, 81f Fair
12/9: Green Bay, L 27-20, 32f Light Snow Fog/Mist
2013: 3-2
9/22: Washington, W 27-20, 71f Overcast
10/6: Green Bay, L 22-9, 61f Fair
10/13: Cleveland, W 31-17, 67f Overcast
11/10: Chicago, W 21-19, 47f A Few Clouds
11/17: Pittsburgh, L 37-27, 59f Light Rain
Total: 10-18
Don't know how much it means, obviously there are other factors than just the weather. But I'll leave this out there, since I looked it up anyway.
Source:
http://nflweather.com/searches/2765
Outdoor Records are from ESPNs expanded standings