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About Summary Tables


These tables are created around the 5th day of the month and are subsequently updated as new data become available. Departures are based on either the most recent 30-year normals (1981-2010) or the 20th century mean (1901-2000). The time series graph represents the data in the summary table. For temperature and degree days, red lines indicate above average and blue lines indicate below average. For precipitation, green lines indicate above average and brown lines indicate below average. For the Palmer drought indices, green lines indicate wet periods and brown lines indicate drought periods.