How do they measure rainfall
Place several marbles or pebbles into the container and add water until it is about one inch deep. Draw a line on the bottle to show the water level. The marbles and water will steady the container against wind. The water will also provide a base level for measurements. Put the rain gauge outside on a level surface, away from any overhanging eaves or trees. Leave the gauge outside all week. Measure the rainfall every day at about the same time of day. Record readings and comments about the weather on the observation chart.
