[Izzle]

Originally Posted by accord1999

At least in the US (and likely by proxy Canada), the 30s were probably the hottest decade on record:

https://www.epa.gov/climate-indicato...w-temperatures

Am I reading the data wrong? Figure 1 shows the "Heat Wave Index". I am not sure how that is calculated.

Figure 2 shows the hot daily highs and the hot daily lows. It looks like the 30s were hot, but it also appears that the general trend is upwards and that since the 70s its been getting progressively warmer.

Figure 6 is interesting. It shows the percentage of weather stations that had a record high in a decade. Again clear trend is upwards with the 2000s being the highest. Unfortunately, they don't show the same for the 1930s.