Biking in the Wind

I signed up to do the Group Health Cycling Challenge. I am on a team with some of the Propulsion guys at Boeing and we are competing to see how many miles we can ride to work in a month. I am not actually riding from home....I drive to the park and ride in Kent and ride from there. It is about 10 miles 1 way so I am doing around 22 miles a day if you count the riding I do at work between buildings. It was really tough getting home today because of the wind. I ride about 15mph on the way to work but I struggle to get 10 mph on the way home because of the wind. I hope the weather improves soon....