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Membership Application

Join the Climatological Observers Link Online


If you are already a member, do NOT use this page. You can alter your personal details, add, edit and delete weather stations, etc. through the Member's Menu Page


If you intend to submit monthly weather records to COL for publication, you must visit the station grading page first, and assess your station's exposure grade (TRSHEUN code) and altitude. Make a note of these, as you will need them to complete your station details on this page!

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Forename* The entered value is less than the minimum required.The entered value is greater than the maximum allowed.A value is required.Minimum number of characters not met.Exceeded maximum number of characters.1 to 30 characters allowed.
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Post Code* Minimum number of characters not met.Exceeded maximum number of characters.5 to 10 characters allowed.
Telephone Minimum number of characters not met.Exceeded maximum number of characters.9 and 16 characters allowed.
Mobile Minimum number of characters not met.Exceeded maximum number of characters.9 to 16 characters allowed; leave the field blank if you have no mobile
Email Address* A value is required.Invalid format.Minimum number of characters not met.Exceeded maximum number of characters.7 to 45 characters.
Bulletin* Please select an item.Choose the way you want to receive the bulletin. Electronic is by far the cheapest
Submitter Check if records are to be submitted
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If you have a WEATHER STATION and intend to submit details to COL for publication in the bulletin, please enter your station details below completing all fields, otherwise leave these fields blank, scroll to the bottom of the page and click 'Submit'.
Station Name Minimum number of characters not met.Exceeded maximum number of characters.1 to 30 characters
Altitude Invalid format.The entered value is less than the minimum required.The entered value is greater than the maximum allowed.Integers between -10 and 1500 only
Grid Reference 2 letters 6 numbers, e.g. SJ 123 456
Exposure Minimum number of characters not met.Exceeded maximum number of characters.The 7 character TRSHEUN string of exposure grades for temperature, rainfall, sunshine, terminal hours, exposure, Oke's urban zone climate index and network.
Morning Observation Time (UTC) Enter as UTC/GMT time hh:mm e.g. 09:00Enter as UTC/GMT time hh:mm e.g. 09:00
Check all the boxes for parameters that you will be submitting data for each month
Air Temperature Absolute and Mean maximum and minimum temperatures, frosts, etc.
Frost Duration Electronic temperature recording device required
Grass Minimum Temperature This is the lowest grass minimum temperature for the month, and days with ground frost
Rainfall Total rainfall, rain days >=0.2mm, wet days >=1mm, days over 25mm, etc.
Rainfall Recorder Type of rainfall recorder, i.e. to provide hourly totals, etc., e.g. electronic, tipping bucket, etc.
Rainfall Duration The monthly hours of rainfall or number of 'wet hours'. A rainfall recorder is needed to provide this data.
Snowfall Mornings with snow lying, day with snow falling, dates, etc.
Thunder Days with thunder, dates and times, etc.
Hail Days with hail falling under and over 5mm diameter, dates, etc.
Fog Days with fog at the time of the morning observation, dates, etc.
Sunshine Sunshine monthly total, maximum daily total, dates, etc.
Soil Temperatures Mean soil temperatures at fixed depths
Wind Direction Totals for 8 point compass, plus calm
Wind Speed An anemometer will be needed
Cloud Cover Monthly mean value expressed as a percentage
Relative Humidity Monthly mean value expressed as a percentage
Evaporation Piche, tank or lysimeter needed
Sea Temperature Monthly mean, maximum, minimum, dates, etc.
Air Pressure Monthly mean, maximum, minimum, dates, etc.
Blackbulb Temperature Blackbulb thermometer needed; monthly mean, maximum, minimum, dates, etc.
Solar Radiation Radiometer needed; monthly mean, maximum, minimum, dates, etc.