Thursday, July 5, 2012
7/5 - 11:30pm - Louisville Urban Heat Island This Week
Thursday July 5th
Louisville Airport 104/78 | Shively 100/72 | Bowman 102/78 | Fisherville 98/72
Wednesday July 4th
Louisville Airport 102/76 | Shively 101/76 | Bowman 99/76 | Fisherville 97/69
Tuesday July 3rd
Louisville Airport 97/73 | Shively 97/73 | Bowman 96/72 | Fisherville 93/67
Monday July 2nd
Louisville Airport 100/73 | Shively 99/73 | Bowman 99/71 | Fisherville 96/67
Sunday July 1st
Louisville Airport 103/74 | Shively 102/75 | Bowman 101/72 | Fisherville 99/70
I've sorted the data above from most urban (the airport) to least urban (Fisherville), so it's not hard to put together that temperatures generally decrease as you get further away from the dense center of Louisville. The Fisherville observation station is located in a valley in the eastern portion of the county, so the low temperatures each morning are a bit cooler than they would be otherwise due to cool air settling into the valley at night. High temperatures at this station shouldn't be affected by the valley and this checks out because I've been keeping an eye on the observations in Shelbyville, which is down the street from Fisherville, so to say. This warmth due to the urban heat island near the airport is significant because this is where the official temperatures for the city are taken. If it's 100 degrees at the airport, the rest of the city is probably seeing temperatures a degree or two cooler.
this link to a blog post I penned earlier this year.