best time of year to paint

Here you go... and I would primer over any existing paint before applying your first coat.

Humidity
If the air is loaded with water vapor, the water in the paint cannot evaporate as readily. This slows down drying times. If the paint is exposed to excessively high humidity, the desired protective qualities of the paint may be compromised.
High humidity also works against a fresh coat of paint by re-introducing water into the incompletely dried paint film. Combine high humidity with low temperatures, and condensation develops on the freshly painted surface, which can mar the paint job.

Temperature
Acrylic and latex paints dry the best within a narrow range of temperatures, between 65 to 85 degrees Fahrenheit. At lower temperatures, the pigments are unable to coalesce properly, which compromises the quality of the finished job and cuts into the lifespan of the paint. At very low temperatures, the water in wet paint can freeze, which effectively ruins the paint.
High temperatures, especially when caused by direct sunlight, can lead to blistering. This effect occurs because the intense heat of direct sunlight causes the compounds in the paint to vaporize, building pressure under the paint layer until the wet paint bubbles away from the substrate.

October.

hahah. thank you for that laugh. i always paint in the spring.

cxaulk in the winter--paint in the summer--not kidding

Not kidding.

Fall in NYC is preferable to spring for painting; fall is generally dry, spring is generally humid.

Paint every autumn and spring, at about the same time that you change the slipcovers on your upholstered furniture. Paper the same week, too, but don't let too many layers build up.

Just paint. Run the a/c while it dries if its too humid that day

Use Primer and > Columbus Day.

In 1492 Columbus painted his co-op blue. (with board approval)