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Crop Heat Units
Calculator Results
The Crop Heat Unit (CHU) for these figures you entered:
| Min Temperature (°C) |
0
|
| Max temperature (°C) |
0
|
Is -24.81
Some Additional Information
The additional information below has been extracted from "Crop Heat Units For
Corn and Other Warm-Season Crops in Ontario" By D.M. Brown and A.Bootsma on the
OMAFRA website which is an excellent article for more info.
All rights are reserved by them.
Average accumulated Crop Heat Units (CHU) and average 10 °C, earliest planting, and
season ending dates for locations across Ontario from southwest to northwest.
| Location |
Average Date Tmean
=10 °C |
Average Date of 3
days Tmean
>12.8 °C |
Average
Season
Ending
Date |
Accum.
CHU |
| Harrow |
Apr. 25 |
May 8 |
Oct. 11 |
3560 |
| Woodslee |
Apr. 25 |
May 8 |
Oct. 9 |
3410 |
| Ridgetown |
Apr. 27 |
May 11 |
Oct. 10 |
3340 |
| London (A) |
May 4 |
May 15 |
Oct. 2 |
2900 |
| Brucefield |
May 4 |
May 16 |
Oct. 3 |
2820 |
| Woodstock |
May 4 |
May 16 |
Oct. 2 |
2890 |
| Delhi |
Apr. 30 |
May 13 |
Oct. 4 |
3040 |
| Vineland |
May 3 |
May 17 |
Oct. 10 |
3190 |
| Hamilton (RBG) |
Apr. 29 |
May 15 |
Oct. 8 |
3210 |
| Guelph |
May 7 |
May 19 |
Sept. 30 |
2680 |
| Redickville |
May 12 |
May 24 |
Sept. 23 |
2380 |
| Peterborough |
May 5 |
May 19 |
Sept. 24 |
2600 |
| Smithfield |
Apr. 30 |
May 18 |
Oct. 6 |
2940 |
| Kemptville |
May 4 |
May 17 |
Sept. 26 |
2730 |
| Ottawa (CDA) |
May 3 |
May 16 |
Sept. 29 |
2890 |
| Petawawa (NF) |
May 8 |
May 21 |
Sept. 20 |
2380 |
| Earlton (A) |
May 16 |
May 27 |
Sept. 10 |
1930 |
| Kapuskasing |
May 23 |
June 1 |
Sept. 5 |
1720 |
| Thunder Bay (A) |
May 21 |
June 3 |
Sept. 10 |
1790 |
| Fort Frances |
May 11 |
May 23 |
Sept. 15 |
2330 |
Average Accumulated CHU's Map for Ontario.
|
