Ambient Weather Support

Rain Increment Definitions

Your weather station may only display some of the following increments of rain. Please refer to your User Manual for details. Here are how increments of rain are defined:

  • Rain Rate is defined as the rainfall in the last 10 minutes, multiplied by 6  (10 minutes x 6 = 1 hour). This is also referred to as instantaneous rain per hour.
  • Hourly Rain is defined as the rainfall in the last hour.
  • Rain event is defined as continuous rainand resets to zero if accumulated rainfall is less than 1 mm (0.039 in) in a 24 hour period.  Some weather stations may calculate this slightly differently and the customer should reference the User Manual.
  • Daily Rain is defined as the rainfall since midnight (00:00).
  • 24 Hour Rain is defined as the rainfall in the last 24 hours. For example, if it is currently 5:00 pm, 24 hour rain would be the amount of rain that has fallen since 5:00 pm yesterday.
  • Weekly Rain is defined as the calendar week total, and resets on Sunday morning at midnight (Sunday thru Saturday).
  • Monthly Rain is defined as the calendar month total, and resets on the first day of the Month.
  • Yearly Rain is defined as the calendar year total, and resets on the first day of the Year. The WS-1000 series weather stations allow you to change the month rain is reset to 0.00 (referred to as Rainfall Season).
  • Total Rain is defined as the running total since station was powered up.