La Crosse Technology Weather Station Instruction Manual page 29

Twice to show the MIN indoor temperature and humidity data with the recorded time and date.
Three times to return to the current displayed values
2. Once the MIN or MAX data is displayed, press and hold the SET key for 3 seconds to reset the respective MIN or
MAX record to current temperature and humidity data, and current time, date display.
Note: The MIN or MAX data needs to be reset individually.
WEATHER FORECAST AND WEATHER TENDENCY:
WEATHER FORECASTING ICONS:
Weather icons in the third section of LCD can be displayed in any of the following combinations:
FORECAST FORECAST
Cloudy with
Sunny
sunny intervals
FORECAST
Rainy
46