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Spraying
What's the best time of day to spray?
Wind, inversion, humidity, and rainfast rules of thumb for hitting the right spray window. Free from the FieldCommandCenter agronomy team.
The short answer
The best spray window on most days is mid-morning: roughly 8–11 a.m. — after the overnight inversion breaks, before wind and heat peak.
Aim for 3–10 mph of steady wind (a little wind beats none), skip the dead-calm evening hours, and know each product's rain-fast time before you look at the radar.
What's in the full guide
- The 3–10 mph wind sweet spot — and why dead calm is dangerous
- Spotting a temperature inversion without instruments
- Humidity, droplet size, and evaporation rules of thumb
- Rain-fast times and how to plan around the radar
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