Historical frost maps, where the temperature recorded is below 2oC, can show us just how variable frost risk can be.
The maps listed to the right include frost severity, which records the minimum temperature and frost occurrence and the number of days in a month or multiple months when the minimum temperature is below 2oC.
Frost severity and frost occurrence maps are for 1975 to 2022:
- July
- August
- September
- October
- August to October
Heat stress, in this case recorded as days above 30°C in August-October, is a limiting factor to crop yield and puts stress on livestock.
Heat severity and occurrence maps are for 1975 to 2022:
- August to October
Here are the average number of frost and heat days for the years 1975-2022 for August-October.
Average frost occurrence, days below 2C, for months August-October for 1975-2022 for the South West Land Division
Average number of days above 30C in August to October for the years 1975-2022 in the South West Land Division.