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Figure 2.5 Chatham Islands winter and spring rainfall anomalies for the period 1878 - 2004, shown as the percentage of the 1971-2000 normal

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The smoothed curve indicates the long-term trend.

Text description of figure

The figure shows two bar graphs of seasonal precipitation for winter (top), and spring (bottom), spanning the period of 1878-2004. The height of the bar indicates the amount of rainfall as a percentage of the 1971-2000 normal. The seasonal rainfall varies a lot through the period, ranging between about 60% and 160% of normal. The driest season was the spring of 1933, with only about 30% of normal rainfall. The long-term trend, superimposed on the histogram bars, indicates little change in winter but a slight increase in spring.