What temperature signifies the occurrence of spring frosts?

The occurrence of spring frosts is typically signified by temperatures at or below 0°C (32°F). This threshold is crucial because when temperatures drop to this point, it can lead to the formation of frost, which can damage tender vegetation that has started to emerge or bloom in the spring.

Understanding this temperature benchmark is essential for those involved in agriculture or horticulture, as it allows for better planning and protective measures to mitigate frost damage. Newly sprouted plants and blossoms are particularly vulnerable during this time, and recognizing the 0°C mark helps gardeners and farmers to take appropriate actions, such as covering plants or delaying planting until the threat of frost has passed.

Other temperatures, like 5°C (41°F), -5°C (23°F), and 10°C (50°F), are typically too warm for frost formation or are beyond the threshold where frost would be expected to impact plant health.