Niagara Weather Information Systems + Year
NWIS 2025 January to April csv (replaced)
As of February 5, 2026, the NWIS 2025 January to April CSV data resource has been replaced. For access to this data use the following resources: - [NWIS 2025 January to March csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/7d8cffaf-47d8-49c7-bbda-353c1d3aab77) - [NWIS 2025 April to June csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/ec2165fc-89ed-4f16-a911-5ec8279c8e2c) The file resource will be removed in 30 days on **March 6, 2026**, and the record after 60 days on **April 6, 2026**.
As of February 5, 2026, the NWIS 2025 May to August CSV data resource has been replaced. For access to this data use the following resources: - [NWIS 2025 April to June csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/ec2165fc-89ed-4f16-a911-5ec8279c8e2c) - [NWIS 2025 July to September csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/d1cf973c-bebc-43c6-b5c8-59038cd73513) The file resource will be removed in 30 days on **March 6,2026**, and the record after 60 days on **April 6, 2026**.
NWIS 2025 September to December csv (replaced)
As of February 5, 2026, the NWIS 2025 September to December CSV data resource has been replaced. For access to this data use the following resources: - [NWIS 2025 July to September csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/d1cf973c-bebc-43c6-b5c8-59038cd73513) - [NWIS 2025 October to December csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/a85570c9-d5da-4b5a-a104-f1bcc51d5d94) The file resource will be removed in 30 days on **March 6,2026**, and the record after 60 days on **April 6, 2026**.
NWIS 2026 January to April csv (replaced)
As of February 5, 2026, the NWIS 2025 September to December CSV data resource has been replaced. For access to this data use the following resource: - [NWIS 2026 January to March csv](https://niagaraopendata.ca/dataset/niagara-weather-information-systems/resource/9d58d136-db26-4974-84bd-d39f9563990a) The file resource will be removed in 30 days on **March 6, 2026**, and the record after 60 days on **April 6, 2026**.