Growing Degree Days

Attached is the final Growing Degree Day update for the 2023 growing season.  20 year GDD averages added to the Summerland and Osoyoos long term comparison plots.  2023 now takes the crown for highest GDD by a fairly significant amount in all areas.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the September 2023 Growing Degree Day Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the August 2023 Growing Degree Day Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the July 2023 Growing Degree Day Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the June 2023 Growing Degree Day Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the May 2023 Growing Degree Day Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

It’s that time of year again!  Attached is the April 2023 GDD Update. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the October 2022 GDD Update.  This is the final update for the 2022 growing season.  A very interesting climate this year that included some of the coolest and warmest months.

Stay tuned for Grape Hardiness Reports that will begin shortly.

Attached is the September 2022 GDD Update.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the August 2022 GDD Update.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the July 2022 GDD Update.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the June 2022 GDD Update.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the April 2022 GDD Update for Summerland and Osoyoos. 

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the April 2022 GDD Update.  I’m pleased to announce that the report has been expanded to include additional locations.  The additional locations come from the Grape Weather Network, an array of high quality weather stations that have been placed within vineyards by the Viticulture and Enology Team at the Summerland Research and Development Centre.  The added locations are West Kelowna, Naramata Bench, Okanagan Falls and Golden Mile.

Attached is the October 2021 GDD Update for Summerland and Osoyoos.  This is the final GDD update for the 2021 growing season.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the September 2021 GDD Update for Summerland and Osoyoos.  2021 has already officially taken the GDD crown away from 1998 in Summerland but the battle continues in Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the August 2021 GDD Update for Summerland and Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the July 2021 GDD Update for Summerland and Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the June 2021 GDD Update for Summerland and Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the May 2021 GDD Update for Summerland and Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the April 2021 GDD Update for Summerland and Osoyoos.

Our Grape Hardiness Reports and Growing Degree Day updates can now be accessed online at:

Attached is the July 2020 GDD Update for Summerland and Osoyoos.

Attached is the June 2020 GDD Update for Summerland and Osoyoos.