Although the hydrograph above shows small to moderate peak flow events during July, the total precipitation for the month was well below average (170mm compared to 30-year average of 263mm). The full force of the rainy season never arrived in Niigata this year. Continuing dry conditions in the first half of the month allowed flows to decrease to similar levels as late June (pre-rainy season). Interestingly the ET induced diurnal fluctuations become less clear as the lowest flows are reached.
The peak flow on July 18 was due to 31mm daily precipitation at Miomote, while the multi-peak flow during July 23-24 was due to nearly 90mm total precipitation and a peak hourly rate of 19mm/h.
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