The warmer temperatures this spring have led to a forecast of a much earlier hull split across the Central Valley.

In the map below, the earliest predicted Nonpareil 1% split is June 17th, 2026 and the latest is July 3rd, 2026. Refer to the color scale to the right of the map to see which dates align with which colored region.

• Red regions indicate places where hull split is forecasted to start earlier (mid-June)
• Yellow regions indicate places where hull split is forecasted to start later (early July)

Note that these predicted hull split dates do not account for the impact of plant water status leading up to split. Moderate amounts of water stress can lead to nuts splitting earlier, whereas severe stress has been shown to delay hull split.

Semios users can check their 1% hull split forecast dates by almond variety to start planning.

Step-by-step instructions:

1. Open the Semios Hub mobile app or go to https://hub.semios.com/.
2. Under the Layers menu, click on Crop Development → Almond Hull Split. This will show your nonpareil hull split forecast on the map.

For a more accurate hull split forecast and to see the forecast for other almond varieties:

Enter the peak full bloom date for each of your almond varieties. This will give you the most accurate hull split forecast. Otherwise, you'll be viewing hull split forecasts based on a general regional model.

1. With the Crop Development → Almond Hull Split layer selected, open the Tables tab.
2. Scroll to Almond Hull Split section and click on Settings.