Monthly variation in (A) precipitation at the Palomarin study area from 1980 to 2000 and (B) daily high and low temperatures at the Palomarin study area (numbers above x axis indicate number of years for which temperature data were available between 1980 and 2000). Boxes represent the 10th and 90th percentiles, the line within each box represents the median, and bars represent 5th and 95th percentiles