I've sat outside the last few nights and they've been swarming. I need to get some Off or Muskol.
Depends on the bodies of water you're near. During our 5 years in Victoria, there were no screens on the windows and no mosquitoes. Mosquitoes require relatively still water to lay their eggs in and hatch. If one has regular breezes on the water (and living near the ocean is good for that), the eggs simply don't hatch.
Conversely, if one lives near bodies of water whose levels have dropped via heat, and do not receive stiff breezes, I could very easily see a sharp increase in mosquitoes. Keep in mind, as well, that the bat population has been negatively affected in some regions with that white-nose disease. Bats normally eat a LOT of mosquitoes.
Not this year, specifically, but the previous two summers they have seemed to be worse - I've attributed that to the decline in the bat population due to white-nose fungus. This summer, I have seen more bats, so I figure that's a good sign, and maybe they will start to decrease the mosquito population.