average US climate (record, temp, Chicago, days)

[Maxwell Senf]

Recently I tried to model the climate for the average human. That was harder than I expected. I'm trying something something easier. This is my attempt to model the average climate for the average American. I averaged out 30 cities: Boston, New York (Manhattan), New York (Brooklyn), Newark, Philadelphia, Baltimore, Washington, Pittsburgh, Detroit, Cleveland, Cincinnati, Chicago (north side), Chicago (south side), Minneapolis, St. Louis, Charlotte, Atlanta, Tampa, Miami, New Orleans, Houston, Dallas, Denver, Phoenix, Seattle, Oakland, San Francisco, Los Angeles, Anaheim, and San Diego.

I know it's not perfect, but I think it's pretty good. Anyways...

Jan: 48.6/32.2 2.89"
Feb: 51.8/34.8 2.79"
Mar: 58.9/40.6 3.21"
Apr: 67.4/48.0 2.86"
May: 74.9/56.0 3.17"
June: 82.0/63.5 3.49"
July: 85.6/67.6 3.30"
Aug: 84.6/66.9 3.20"
Sept: 79.5/61.1 3.08"
Oct: 70.3/51.7 2.93"
Nov: 60.7/43.0 2.95"
Dec: 50.8/34.9 3.06"

days of precipitation - 105.8
hours of sunshine - 2726.4
sunshine - 60%
record high - 107
record low - -5

I wish I could say that I expected something different, but this is pretty close to what I expected. Maybe I expected that the winters would be a bit colder. Other than that, this is what I imagined. What do you guys think? Is this surprising? Is it what you would expect?

[divisionbyzero0]

Pretty close for the avg US temp of ~58F and not far from avg global temp ~59F, but the sunshine hours : what source you used? US sun hours data is overstated about 200 hours

[Maxwell Senf]

I just used Wikipedia. I know that US sun hours are inflated, but I was using US data, so I kind of had no choice.

[PCALMike]

Why are the US sun hours along the Mexican border the same as the sun hours on the Mexican side of the border?

[divisionbyzero0]

Maybe Mexico use the same threshold with US, look at Canadian border