Spring in Southeast Michigan presents a lot of challenges for cleaning and sealing brick pavers. Weather and temperatures are erratic and can cause anxiety and frustration when executing a brick paver sealing project. I usually would recommend that cleaning & sealing of brick pavers be scheduled after mid-May to insure optimal conditions for the best appearance. The cleaning and sealing season will usually end by the end of October.
The desired temperatures for brick paver sealants is between 50-90 degrees. When deciding to seal pavers at the 2 extreme temps, its important to take in effect sunlight, humidity, and wind. Cleaning of brick pavers and re-sanding of paver joints does not really have any weather restrictions. Brick paver projects that do not involve using sealer, I will perform as early as late March to Thanksgiving.