Present Year Data Download (hourly-average)


To know more about the algorithm for the QC tests, see description here.

Community Weather Information Network (CoWIN) data policy

  1. Access to these CoWIN data is unlimited and provided without charge.
  2. The CoWIN gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these dataset. The entire risk of use of the data shall be with the user.
  3. When publishing data retrieved from the CoWIN, you are expected to acknowledge the contributors who author these data as the CoWIN as data source, and cite the journal paper of data quality control ( Lam et al., 2021. ).
  4. Please inform us if you publishing journal paper using the data retrieved from CoWIN. We would put a link of your journal paper on our publications page.