When is it OK to water in the winter? – News on TAP Experts recommend using a little water during prolonged dry spells when temperatures are above 40 degrees. Source: When is it OK to water in the winter? – News on TAP Share this:Click to share on Twitter (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window)Click to share on Facebook (Opens in new window)Like this:Like Loading...