Calculate and plot the monthly-averaged precipitation – describe and explain the variation in precipitation.

• Calculate and plot the monthly-averaged precipitation – describe and explain the variation in precipitation.

• Calculate and plot the averaged monthly precipitation for July-August-September for each year on one set of axes – y-axis is precipitation, x-axis is time in years. Briefly describe the variation in precipitation shown on this plot.

• Calculate and plot the monthly anomalies of precipitation for July-August-September. Briefly describe the variation in precipitation shown on this plot.Note the years that are El Nino/La Nina in the 20th Century

• Plot the averaged monthly sea surface temperature anomalies for July-August-September for each year on one set of axes. Describe the variation in SST shown on this plot. Note the years that are El Nino/La Nina in the 20th Century.

• Give a detailed comparison of the extremes (very large, positive; very large negative) of monthly (JAS) precipitation anomalies with those of the ENSO index (SST plot from above). Plotting both the anomalies of precipitation and SST on the same set of axes can make your comparison easier to do. **1 page double spaced for the comparison part