Yesterday I posted about the ABC’s short term memory about heat at Longreach. Today it’s Boulia’s turn, this time due to a News Limited article, “Relentless, endless summer. The Queensland town where it’s been 40 degrees pretty much forever”.
Time for a reality check.
Using the ACORN dataset and current data for Boulia up to 2 March, here is a 180 day running count of days above 40 degrees in Boulia. (This captures days in one summer, but not two).
Fig. 1: 180 day running count of days above 40 C at Boulia.
Even with 43 missing days of data in December and January, this summer is not unusual.
The next graph shows the length of 40+ heatwaves.
Fig. 2: Consecutive days above 40 C at Boulia.
This is definitely NOT the longest ever heatwave. This one is very mild- 31 days in 1973 is going to be hard to beat. Note that there is NO TREND in the length of heatwaves.
Finally, this graph shows the number of days above 45 degrees, which is hot in anyone’s language. The missing data may have had some 45+ days, but there were many days with rain in this period.
Fig. 3: 180 day running count of days above 45 C at Boulia.
It’s hot in Boulia, but not unusually so.
Tomorrow I will look at the latest claims about Australia getting hotter and cities getting more heatwaves.