Lodi, California / Cherry Chill
Total Chill:
52
(Feb 15)
Day 107 / 107 (100%)
Current Season
Total Chill:
52
(Feb 15)
Method: Dynamic/Portions Model
Season: Nov 01, 25 - Feb 15, 2026
Chill accumulation tracks the cold exposure needed for dormant fruit trees and plants to break dormancy and bloom properly in spring.
Thresholds mark specific chill values when dormancy requirements are typically met, with crossing dates showing when your season reaches each milestone.
Thresholds & Notes
Early Dormancy
5
Chill Hours
Nov 24, 2025
|
Nov 24, 2024
|
Nov 27, 2023
|
Nov 11, 2022
Early accumulation slow. Finish harvest cleanup and sanitation.
Leaf Drop Complete
10
Chill Hours
Nov 30, 2025
|
Dec 2, 2024
|
Dec 8, 2023
|
Nov 22, 2022
Apply copper spray for bacterial canker.
Deep Dormancy
15
Chill Hours
Dec 8, 2025
|
Dec 10, 2024
|
Dec 18, 2023
|
Dec 1, 2022
Safe window for major pruning opens.
Midpoint Approach
20
Chill Hours
Dec 14, 2025
|
Dec 17, 2024
|
Dec 28, 2023
|
Dec 8, 2022
Order trees for replanting.
Midwinter Mark
25
Chill Hours
Dec 28, 2025
|
Jan 7, 2024
|
Dec 26, 2024
|
Dec 15, 2022
Apply dormant oil if scales were problematic.
Low-Chill Satisfied
30
Chill Hours
Jan 7, 2026
|
Jan 5, 2025
|
Jan 13, 2024
|
Dec 22, 2022
Low-chill varieties (Minnie Royal) requirement met.
Royal Series Complete
35
Chill Hours
Jan 15, 2026
|
Jan 15, 2025
|
Jan 25, 2024
|
Dec 29, 2022
Royal Lee Royal Crimson requirement satisfied. Continue pruning.
Final Pruning Window
40
Chill Hours
Jan 22, 2026
|
Jan 24, 2025
|
Feb 7, 2024
|
Jan 6, 2023
Finish major pruning.
Lapins Complete
45
Chill Hours
Jan 30, 2026
|
Jan 31, 2025
|
Jan 18, 2023
Rest-breaking sprays considered for high-chill varieties.