A website (link below) that has info on weather in the Chiang Rai town area and the province with online data from Personal Weather Stations (PWS).
Plus, there are links to rain radar, weather forecasts, Air Quality, webcams, lightning etc. all in one place.
For rainfall, there are monthly stats since 2013 from a data source about 15km west of Chiang Rai town.
In the "wet season" you can get online rainfall info, and during the "smoke season", Air Quality readings . .
The site is updated at the start of each month.
https://bomzee.com/weather/index.html
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