Romm and Masters keep touting the ratio of record maximums to record minimums this summer, but their numbers are both lower than 1936, and hugely skewed by a large number of newer stations which had no records from the 1930s. Not to mention UHI – which keeps recent nighttime temperatures up.
Here are some legitimate numbers from 1936, which use only the USHCN stations that have 80+ year long databases.
June 1936 TMax/Tmin = 18 / 1
July 1936 TMax/Tmin = 19 / 1
August 1936 TMax/Tmin = 14 / 1
I won’t be able to do any analysis of the 2012 numbers until USHCN releases them next year, but they won’t be anywhere close to 1936.
