hard frost
Ice-forming overnight cold
A hard frost is a frost severe enough to freeze the ground solid and kill most plants.
Distinguished from a light or soft frost, which may only affect tender vegetation, a hard frost typically occurs when temperatures drop well below freezing for several hours: The hard frost last night killed the tomatoes.
- plant damageHarm to vegetation
- freezeBecome solid from cold
- crop failureWhen fields yield nothing
- subzeroBelow the freezing point
- bitter coldExtremely low temperature
hoarfrost · rime · ice crystals · permafrost · energy demand · cold snap · thermal insulation · winter storms · frostbite · snow cover · winter solstice · polar vortex · windchill · dead of winter
- Frosthoarfrost, rime, ice crystals, defrost
hard frostlight frost
Thin ice crystal layer
touch of frost · ground frost · hoar frost · first frost · killing frost
hard frostheat wave
Extended extreme warmth
scorching heat · sweltering heat · hot spell · summer heat · warm spell
hard, frost, harder, hardest, harden, hardened, hardening, hardness, hardly