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Environment Canterbury records rainfall at 75 sites throughout Canterbury, measuring intensities in 7.5 or 15 minute intervals depending on their proximity to the Southern Alps/Kā Tiritiri o te Moana. The earliest records available are from Ashley Gorge which dates back to 1949, and the Arthur's Pass site which commenced records in 1955. The data from these sites can be used to assess storm intensities, provide the basis for flood warnings and provide daily, monthly or annual rainfall totals.
River reports and flood warning information is also available. See the links below for more information. Rainfall, particularly that which falls on Canterbury’s foothills has a direct impact, not only on river and stream flows, but on the amount of water or recharge reaching the region’s aquifers. The Canterbury Plains themselves have relatively low rainfall and the normally fast-draining characteristics of the soils and rock mean large seasonal fluctuations in the soil moisture content. Rainfall recharge is therefore critical to maintain groundwater levels and thus the supply of water in these drier areas during spring and summer.
Rainfall for Northern Region
Find out the latest rainfall measurements for sites around the Northern Region. ..
Rainfall for Southern Region
Find out the rainfall measurements for Southern Region. ..
Click on the map to view the monitoring sites for that area.
Page created: 6/08/2009. Last updated: 4/10/2014.
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(03) 353 9007
0800 324 636 (EC INFO)
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