TIL that the USDA hardiness zones are each a ten-degree band of average minimum temperature in the fahrenheit scale, and the “a” and “b” suffixes break each zone down further into 5 degree ranges.

scarabic@lemmy.world · edit-2 1 year ago

TIL that the USDA hardiness zones are each a ten-degree band of average minimum temperature in the fahrenheit scale, and the “a” and “b” suffixes break each zone down further into 5 degree ranges.

Treevan 🇦🇺@aussie.zone · edit-2 1 year ago

https://en.m.wikipedia.org/wiki/Köppen_climate_classification

This is the global system.

With that, a modified version.

https://en.wikipedia.org/wiki/Trewartha_climate_classification

scarabic@lemmy.world · 1 year ago

Ah sure enough! It’s even mentioned in the Wikipedia page I posted but I missed it. Thanks!

In addition, the Köppen climate classification system can be used as a more general guide to growing conditions when considering large areas of the Earth’s surface or attempting to make comparisons between different continents.[14] The Trewartha climate classification is often a good “real world” concept of climates and their relation to plants and their average growing conditions.[citation needed]

TIL that the USDA hardiness zones are each a ten-degree band of average minimum temperature in the fahrenheit scale, and the “a” and “b” suffixes break each zone down further into 5 degree ranges.

TIL that the USDA hardiness zones are each a ten-degree band of average minimum temperature in the fahrenheit scale, and the “a” and “b” suffixes break each zone down further into 5 degree ranges.

Hardiness zone - Wikipedia