Rainfall Statistics

Statistics of Heavy Rainfall

Specialised rainfall statistics based on a time series or frequency analysis are available from the Hydrometeorological Advisory Service (HAS).

Requests for these statistics should be forwarded to HAS on:

Phone: (03) 9669 4516
or Fax: (03) 9669 4725
Standard charges apply.

ITUWM Average of the duration in each month for which rainfall intensities exceed 6 nominated values. Average and number of occurrences of worst month are also provided. This program follows the ITU-R (International Telecommunications Union - Radiocommunication) (formerly CCIR) definition of worst month.
HIGHMN List of rainfall intensities (including date and time of occurrence) exceeding a nominated value for each of 12 durations ranging from 6 minutes to 72 hours.
HRANMM Average frequency of clockhour rainfall intensities within 10 nominated ranges or exceeding 10 nominated values.
INTDUR Average frequency and duration of rainfall intensities exceeding a nominated value. Averages are given for each month and hour of the day.
PLUVIFD Frequency analysis for standard durations from 1 minute to 72 hours and Average Recurrence Intervals (ARI) from 3 months to 100 years.

RADIFD Highest fall per year for 10 durations ranging from 4 to 30 days and a frequency analysis based on these data.
RADNAL Average number of days per month for which daily rainfall totals fall within 10 nominated ranges or exceed 10 nominated values.
RNDATE List of the n-highest, m-day falls and their date of occurrence for n,m between 1 and 10.