MSU Extension Apples

Hourly and daily weather data

MSU hosts Enviro-weather, an Internet resource with weather data for pest management and other crop production practices. Enviro-weather maintains weather stations collecting data in many of Michigan’s apple-growing regions. Data from MSU’s Enviro-weather stations aid decision-making as you note conditions at your orchard’s site. From the Enviro-weather home page, select the station nearest you to get hourly updates and daily summaries about air and soil temperatures, leaf wetness, precipitation, wind speed and growing degree day accumulations. Models for disease development and planning insect management can help you deal with pest challenges including codling moths and fire blight. 

Weather equipment and use of degree days

• About purchasing your own weather equipment
• How to use growing degree days for pest management

Freezes/Cold hardiness

Assessing the impact of freeze and other cold hardiness issues:

• Critical spring temperatures for apple blossom buds
• MSU Extension resources for responding to freeze conditions

Drought conditions

• MSU Extension resources for drought conditions