See also: Dealing with Breathing Problems written for patients. The term hyperventilation describes excessive ventilation of the lungs, beyond what is required to achieve normal arterial blood gases.
A light frost occurs when the temperature drops to below 32 degrees Fahrenheit, and refers to the conditions that allow a layer of ice crystals to form when water vapor condenses and freezes without first becoming dew. Harvest basil and other tender herbs before a light frost (when the temperature drops to 32 degrees Fahrenheit). 2  Even if they survive the frost, they don't do well in cold temperatures. 3  The same is true for most annuals.
Frost-free days average 110 days, typically occurring between May 26 to September 14. Mean daily temperatures range from â8.3 Â°C (17.1 Â°F) to 18.2 Â°C (64.8 Â°F). However, temperatures can range from â20 Â°C (â4.0 Â°F) in the winter to 35 Â°C (95.0 Â°F) in the summer months.