Hygrometers

1. Hygrometers measure relative humidity in the environment surrounding the weather instrument. In addition to temperature, humidity is an important aspect to many areas regarding agriculture.

2. Humidity is the amount of the vapor content in the surrounding air, and is expressed as a percent. Hygrometers are the most common addition to thermometers.

3. There are three common types of sensing mechanisms on a hygrometer weather instrument. They are: hair (hair hygrometer), carbon-coated plating (electrical hygrometer), and an infrared sensor (infrared hygrometer).

4. High humidity is associated with snow, rainfall or brewing clouds. The ideal humidity for humans is roughly 30-50% in the winter, and around 40-60% in the summer.

5. You can go as high-tech or as low-tech as you want. From an indoor weather station to a full digital readout with memory and alarms, you will find it here.