年ねん較かく差さ

also: ねんこうさ

Meanings

1

annual range; yearly range

Meteorological term for the difference between the highest and lowest values of a climatic element (especially temperature) within a year.

この地ち域いきの気き温おんの年ねん較かく差さは大おおきい。
The annual range of temperature in this region is large.
年ねん較かく差さが小ちいさい海かい洋よう性せい気き候こうでは、夏なつと冬ふゆの気き温おん差さが少すくない。
In an oceanic climate with a small annual range, the temperature difference between summer and winter is small.