The region has an average annual temperature of only 9 degrees; however, summers have been known to see the mercury rising to 38 degrees. (holiday-weather.com)
The pitch of each note is tuned to the average annual temperature in each region, so low notes represent cold years and high notes represent warm years. (dotearth.blogs.nytimes.com)
The nationally averaged annual temperature for the country was 0.1 °C (0.2 °F) above the 1981 — 2010 average. (ncdc.noaa.gov)