Explanation of Lettering
Under Köppen, the following variants of this climate are possible:
- The second letter
- w: a dry winter — the driest winter month has at most one-tenth of the precipitation found in the wettest summer month.
- s: a dry summer — the driest summer month has at most 30 millimetres (1.18 in) of rainfall and has at most ⅓ the precipitation of the wettest winter month.
- f: Does not meet either of the above specifications.
- The third letter
- a: Warmest month averages above 22 °C (71.6 °F)
- b: Does not meet the requirements for a, but there still are at least four months above 10 °C (50 °F).
Read more about this topic: Humid Continental Climate
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