If very wet weather has prevented able the autumn renovation programme, then it is too late and the work will need to be carried out in the spring.
If the square is very wet or frosty the best advice is keep off. During this month deep aeration can be carried out if conditions allow and you should use a spiker with a vertical action and 4-inch pencil tines at 2-inch centres.
Continue to brush or switch the square when possible to disperse any fungal spores present to reduce the risk of disease this will also remove the dew prior to any mowing. If mowing is possible remember to cut no shorter than 1 inch.
Other jobs for the month, if not already done, is to check sightscreens that they are in a safe position for the winter and grease the wheels. Clean and arrange for all machinery and equipment to be repaired and serviced.