Join Us

With all forms of membership, you can submit monthly data to COL if you run a weather station. There is no extra charge for this.

Annual subscription rates vary according to the way in which you want to receive the monthly bulletin:


You will receive the bulletin by email each month in PDF format. You have the chance to download versions for both reading on screen, or printing out.

  • Electronic only subscription is £12

Paper, or paper plus electronic

You will receive a paper copy of the bulletin each month via the postal service. You can also choose to receive the electronic version as well at no further cost. Printing and postage costs are significant, so the subscription rate is higher.

  • UK £50
  • For paper copies outside the UK please contact the Editor


The easiest way to join COL is to use our online system here

Alternatively you can download a membership form, in Microsoft Word format, by right clicking this link, complete it and return it by email (as an attachment) to the Webmaster. If you intend to submit monthly data, before entering any station details, you must also grade your site using the COL scheme, which can be downloaded here. The grade gives an indication of the exposure of your instruments and the likely impacts of the surrounding environment, buildings, etc.

Your privacy is important to us and you should download an read a copy of our privacy statement.

N.B. If you join COL part way through the year, and opt for electronic access to the bulletin via email or the website, you will still need to pay the full annual subscription, but you will have access to all the bulletins for that year via the website.

Once your form is received, your information will be held securely on the COL database, and passed to the Secretary, the Teasurer and the Bulletin Editor.


You will also need to pay your subscription online or send a cheque to the COL Treasurer: Mike Snow, 2 Broxfield Close Oadby Leicester LE2 5WJ.

Alternatively, payment can be made by BACS - please contact the treasurer by email at to obtain details, and include a completed joining form in your email.

What happens next?

If you have just signed up to receive the monthly bulletin, you should start to receive this within the next month.

If are going to submit data, then you will be informed of your Station Name and Number by email, as soon as this is set up, which will usually be within a few days.