A precipitation measurement device measures a precipitation rate of
falling precipitation. A first probe is exposed to the falling
precipitation. A first temperature sensor detects a first probe
temperature. A second probe is shielded from the falling precipitation. A
second temperature sensor detects a second probe temperature. A heating
element heats the first probe and the second probe when turned on, but
not when turned off. After being heated and when the heating element is
turned off, the first probe cools at a first temperature drop rate, and
the second probe cools at a second temperature drop rate. Circuitry
processes a difference between the first temperature drop rate and the
second temperature drop rate to determine the precipitation rate of the
falling precipitation.