La Crosse Technology WIRELESS WEATHER STATION Instruction Manual page 44

The default temperature reading is set to °C (degree Celsius). To select °F
(degree Fahrenheit):
1. The "°C" will be flashing, use the + key to toggle between "°C" and "°F".
2. Once the desired temperature unit has been chosen, confirm with the SET
key and enter the "Weather Forecast Icon Sensitivity setting" or exit the
setting mode by pressing the CH key.
WEATHER FORECASTING ICON SENSITIVITY SETTING
For locations with rapid changes of weather conditions, the threshold can be set to
a different level for faster display of changing weather conditions.
86