Relative Humidity (1.5 m)
The 5-minute average relative humidity at a height of 1.5 meters above the ground. Because of the sorption sensor's inherent inaccuracy at saturation, the mesonet restricts all readings above 100% to 100%.
  • Relative humidity changes when either the moisture content of the air or the air temperature changes.
Type Sensor Used Standard Units Accuracy
Standard - Primary Vaisala HMP45C, PDF described as a percentage ± 3% for 10 - 98