Makeup 30 mile ride

I did not ride Sunday because of bad weather. So today I hopped on the bike and did a fast 30 mile ride. I managed a 16.4 mph speed. The route has 1248 feet of climbing. The wind was from the WSW at 10mph at the airport. My new fancy GPS says I burned 1348 calories. I think that is high. I think it is more like 1100-1200 calories. Tomorrow I plan on doing a 20 mile course. I will use these two routes to gauge my progress in training. The issue is the wind speed on the river might change my ride speed more then my continued fitness level.