Calibrating, Setting, and Clearing Variables29To set a weather variable’s value:1. Select the variable you wish to change (either RAIN or ET).2. Press and release 2ND, then press and hold SET. The variable blinks.3. Keep holding SET until all digits are lit and stop flashing. Release SET; onlyone digit is now blinking.4. Press the < or > keys to select digits in the value.5. Press the + and - keys to add to or subtract from the selected digit.6. When you are finished, press DONE to exit.Clearing Weather Variables Accumulations & CalibrationsThe following weather variables can be cleared:• Wind Direction—Clears the wind direction calibration.• Barometer — Clears any pressure offset used to calibrate the station.Note: Clearing the barometric pressure offset value also clears the elevation setting in SetupMode. See “Screen 10: Elevation” on page 11.• Daily rain—Clearing the daily rain value is reflected in the daily rain total,the last 15 minutes of rain, the last three hours of rain sent to the forecastalgorithm, the umbrella icon, and the monthly and yearly rain totals. Clearthe daily rain total if the station accidentally recorded rain when the ISSwas installed or after routine cleaning and maintenance.• Monthly rain — Clears the monthly rain total. Does not affect the yearlyrain total.• Yearly rain — Clears the yearly rain total.• Daily ET — Clears daily ET and subtracts the old daily ET total from themonthly and yearly ET totals.• Monthly ET — Clears the current monthly ET total. Does not affect theyearly ET total.• Yearly ET — Clears the current yearly ET total.• Heating and Cooling Degree Days— Clears the accumulated degree daytotal.To clear a single weather variable:1. Select the weather variable. (For degree days, select outside temperature,press WxCtr until degree days is displayed.)2. Press and release 2ND, then press and hold CLEAR.The variable you’ve chosen blinks. Keep holdingCLEAR until the value changes to zero or, in the caseof the barometer, the raw barometer value.Clear All CommandThis command clears all stored high and low weather data, including monthlyand yearly highs and lows, and clears alarm settings all at once.1. Press WIND, making sure wind speed is displayed.2. Press 2ND then press and hold CLEAR for at least six seconds.3. Release CLEAR when “CLEARING NOW” displays at the bottom of thescreen.