Historical frost and heat maps for the South West Land Division

Historical frost maps, where the temperature recorded is below 2^oC, can show us just how variable frost risk can be.

The maps listed 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 2^oC.

Links to frost severity and occurrence maps for the period 1975 to 2023 are provided below:

Heat stress, in this case recorded as days above 30°C in August to October, is a limiting factor to crop yield and puts stress on livestock.

Heat severity and occurrence maps are also provided for the period August to October, 1975 to 2023.

The maps below show the average number of frost and heat days for August to October for the years 1975 to 2023:

Average number of days below 2C for August to October 1975 to 2023 for the South West Land Division

Average number of days above 30C for August to October in the South West Land Division for the years 1975 to 2023

The maps below show the average number of days below 2°C for July, August, September and October for the years 1975 to 2023:

Average number of days below 2C for the South West Land Division for July 1975-2023

Average number of days below 2C August to October for 1975-2023 for the South West Land Division

Average number of days below 2C in September 1975-2023 for the South West Land Division.

Average number of days below 2C in October 1975-2023 for the South West Land Division