A cool cool August. That means the grass grows really fast, even though there hasn't been any rain to speak of. This has got to be one of  the coolest Augusts ever. Nighttime temperatures in the 50s - and often taking a long while to warm up. The one rainfall came all at once. Torrents amounting to 2-1/2 inches on August 13. The Lawn Beds don't change very much, at least from this angle, but the field beyond…