Monthly Weather Review, October 2024
Issued: November 1, 2024
On this page:
Overview
Records
Summary
Meteograms
Monitoring
Notes
Overview
The total rainfall was 45.8 mm, which is 81% of the long-term October median rainfall.
The mean maximum temperature was 21.3° C, which is 0.9° C warmer than the long-term October mean maximum temperature.
The mean minimum temperature was 10.7° C, which is 0.7° C warmer than the long-term October mean minimum temperature.
Records
The 32.3 mm of rain on the 19th is a new record for the highest October daily rainfall. The previous record was 27.8 mm on 22 October 2022.
The mean minimum temperature of 10.7° C is a new record for the warmest October mean minimum temperature. The previous record was 10.6° C in 2017.
Summary
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Meteograms
Click on a graph to see it displayed at full-size
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Monitoring
To check for consistency with nearby official stations, the daily maximum and minimum temperatures from the AWS are routinely compared against the BoM AWS at Laverton RAAF, whilst the daily rainfall from the standard rain gauge is compared against the BoM AWS at Laverton RAAF and the Melbourne Water rain gauge at Hoppers Crossing.
Note: Tr indicates a rainfall amount of less than 0.1 mm (a trace of rain) and does not count towards the monthly rainfall total or the number of rain days.
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Notes
Units of Measurement
Unless otherwise advised, temperature is given in degrees Celsius (° C) and rainfall in millimetres (mm).
Observation Times and Reporting Periods
The main observation for the day is at 9 am when the precipitation over the past 24 hours is determined, and the maximum and minimum thermometers are also read and reset. The following conventions are used for assigning dates to the observations made:
- Maximum temperature : the 24 hours from 9 am on the date the data are recorded. The maximum temperature will usually occur in the afternoon of that day.
- Minimum temperature : the 24 hours to 9 am on the date the data are recorded. The minimum temperature will usually occur in the morning of that day.
- Mean temperature : the average of the daily maximum and minimum temperatures on the date the data are recorded.
- Daily rainfall : the 24 hours to 9 am on the date the data are recorded. A significant portion of the rain may have occurred on the previous calendar day.
- Monthly rainfall : from 9 am on the last day of the previous month to 9 am on the last day of the current month.
- Phenomena : the 24 hours to midnight on the date the data are recorded.
Climatology & Station Records
Our climatology and station records are based on all available data since 1 April 2017. All annual data are based on complete calendar years commencing in 2018. If a station record is equalled, the record shall pass to the most recent date to conform to standard BoM practice.
Variation from climatology: This is a measure of the difference between the current month and the long-term average for that month. For most meteorological elements, the mean of the values recorded over many years is the standard measure of the average. For rainfall however, particularly if there is a small volume of available data, the median is the preferred measure of the average due to the high variability of rainfall. The median is less affected by extreme rainfall events than the mean.
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