Tuesday 13 September 2016

Summer days

I had the impression that this year had lovely summery weather. it did, and I enjoyed it lots. But apparently it was only about the same as the long-term (30-yr) average (of about 50 days per year), and even this year was cooler than some of the recent warmer summers that Helsinki's had in the last decade or so.
Weather station at Helsinki Airport in Vantaa.
"BBQ days" are with maximum temperature above 18C, at least 4 hours of sunshine and no rain.
"Hot days" are with maximum temperature above 25C.

Source: Finnish Meteorological Institute.