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Rainfall (in cm) among years at arroyo toad study sites. “Normal” average annual rainfall indicated by (—) (National CLimate Data Center 2017). (Normal for Little Horsethief Canyon is approximately 91 cm/year, for Santa Margarita River and Cristianitos Creek is ≈34 cm/year, and for Boden Canyon and San Pasqual Valley is ≈41 cm/year (http://cdec.water.ca.gov; https://usclimatedata.com)
