Keep a few of these basic rain gauges around to monitor watering and rainfall in different areas of your yard.Easy-to-read and easy-to-mount - on a fence post, deck railing, or it can even be stuck into the ground. Use this accurate, versatile rain gauge where you need one quickly, even to monitor your lawn or garden watering. It is graduated in tenths of an inch (and in centimeters) up to 5 inches. Place rain gauges in an open area without obstacles (buildings or trees) that would block the rain. Any dripping from the roofs or leaves also could result in an inaccurate reading.