Average temperature here means the mean of daily air temperatures at the city coordinate across calendar year 2025.

• This game uses Open-Meteo daily temperature_2m_mean values for 2025.
• The game averages all valid daily temperatures into one annual mean in degrees Celsius.
• In each round, pick the warmer city, or SAME when both annual averages match.

A yearly mean hides seasons. A city can still swing from freezing winters to brutal summers and land in the middle on average.