August was exceptionally wet, with many rain-gauges collecting more than twice the typical rain for the month.
The average was 176.6% of the long-term average, and ranged from 80% at Rimunui Station to 387% at Dawson Falls.
Year to date rainfall is sitting between 113% (Manganui at SH3 Midhirst) and 211% (Dawson Falls) with an average of 141.7% of normal. Cape Egmont remains at around 211% of normal to date and has already received 95% of a typical year’s rain in eight months.
Mean river flows for August were high like July, and generally above typical August averages at more than two times normal long-term averages. Mean river water temperatures were an average of 1.3ºC above long-term August values.
August 2022 rainfall maps
What you should know:
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The site maps show data from a selection of the sites we monitor, but not all of them.
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The distribution maps are based on mathematical modelling and may not accurately represent actual rainfall in some unmonitored areas.
Click on each map for larger version.
MONITORED SITES
RAINFALL DISTRIBUTION
