The Gleaner
Weather Report

Châteauguay Valley Weather September 12-18, 2021

Peter Finlayson, Ormstown Weatherman

Heat wave! Well, that’s a bit of an exaggeration but so far September is running nicely above the norm with an average temperature of 17.3° C. Last week was 16.8° C and the normal for the month is 16.2° C. The forecast still has another week of above normal temperatures before things start to cool off as we head into October.

The extra heat is also keeping the heat units ticking along, with 380 CHU so far in September. Again, this is slightly above the prorated average for the first 18 days of the month, based on the normal for the month of 569 CHU.

The season-to-date total is now 3129 CHU, with the start of the growing season measured from May 10th. With a warm week ahead, the region will no doubt surpass the norm for heat units which is +/- 3300 CHU depending on the start date of the season.

The sunny skies of the last week – it’s been great for making a third cut of hay – has meant very little rain, although, for one of the few times this summer, it seems the whole region received a similar amount of what little precipitation there was. Ormstown received 13.4 mm of rain, bringing the total to 38 mm. The Environment Canada weather station in St-Anicet is reporting 34.4 mm for the month so far, and l’Acadie 31 mm, with Ste-Clothilde at a meagre 22 mm.

Initial moisture testing on the corn cobs indicates rapid dry-down and very large kernels, which augurs well for a bumper crop. Kernel moisture in my fields has dropped from 33% to 26% in the space of a week, with kernels already hard and difficult to dent. The larger than normal kernels means that the kernel count (90,000) might have to be adjusted downward (+/- 80,000 kernels) to calculate the bushel weight and, therefore, the overall yield.

Leave a comment

* By using this form you agree with the storage and handling of your data by this website.