Are all rain gauges the same?
The gauge is the same type the National Weather Service uses. It has a funnel that deposits rain into an inner tube with a smaller diameter (like this one), but bigger. The inner tube’s diameter is just small enough to make the depth of rain ten times what it would be in a gauge without the tube and funnel.
What is the proper size for a rain gauge?
A wider diameter usually leads to more accurate readings. A 4-inch rain gauge is appropriate for most uses, while 8 inches is what the National Oceanic and Atmospheric Administration employs for its data. To avoid evaporation before the water level can be measured, UV protection is another factor to consider.
How accurate are backyard rain gauges?
Analog rain gauges are very accurate with precise measurement markings, but some are highly accurate such as the Stratus Precision Rain Gauge which is accurate to 1/100th of an inch. Wireless rain gauges provide incredibly accurate rainfall or snow data as they connect directly to a national or global weather station.
Does it matter what the diameter of a rain gauge?
What is the size of a rain gauge? It doesn’t matter because it is not the volume but the height of the water we measure. For example, on a yearly average, all oceans, lakes, outdoor swimming pools and rain gauges increase by nearly one meter! Click to see full answer.
Is a 5 gallon bucket a good rain gauge?
Most rain gauges for automatic weather stations are of the swinging bucket type, which must be installed in an accurately horizontal plane for correct operation.” The most accurate rain gage we have is a 5 gallon bucket in the middle of the driveway turn around.