Painting in the cold, wet weather.

Just came across a useful tip from @McCormickPaints :
'Brr. In cold weather, be sure to check the paint label for recommended lowest temperature application prior to applying paint.'

It is also worth checking the product information to see if there are any limitations with regard to humidity and dew point. A typical situation might be "Do not apply this product if the RH exceeds 90% or if the substrate is within 3ºC of the dew point."