NWIS Weather Portal - ON

🍁 NWIS Weather Stations

Interactive Data Portal

Selected Station ID Tip: Click a map marker to auto-populate

Start Date & Time

End Date & Time

Summary:

Temp (°C)
Wind (km/h)
Prev Wind Dir (°)
Total Precip (mm)
Records

...

DateTime	Temp (°C)	Wind Spd (km/h)	Wind Dir (°)	Precip (mm)

Windrose

🍁 About Niagara Weather Information Services Data Portal

This portal displays weather records from all stations in Niagara Region

All available Station data can be found in the downloaded CSV files

Not all stations report all parameters — and some stations may be out of service for certain time periods.

parameters in each dataset MAY include: Station_ID, Station_Name, DateTime, Temp, Wind_Dir, Wind_Spd, Latitude, Longitude, Precip_Amount

Included in Summary Card (max/min/average)

✅ Temperature (°C)
✅ Wind speed (km/h)
✅ Prevalent Wind Direction (°360)
✅ Total Precipitation (mm)
✅ # of Records in the Query

Data is sourced directly from Niagara Region's public climate datasets. If it's present in the NWIS database, it is reflected here.

Typical station details:

Measurement precision varies by instrument but generally ±1°C (temperature), ±3 km/h (wind speed), ±10° (wind direction)
Includes active stations from Jan. 1, 2022 to present (usually prior day at 23:00)
Data records updated twice daily
🔗 See NWIS OpenData page here:

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