This BayData product from the Virginia Institute of Marine Science summarizes the physical conditions that impacted the health of the Chesapeake Bay during 2019. Mouse over any data graphic to reveal its interactive features.
See cumulative precipitation data for other Bay watershed cities below. All data are from weather stations operated by NOAA's State Climatology Network.
Salinity in Chesapeake Bay ran at abnormally low levels through the first 9 months of 2019 due to ongoing rainfall and continued groundwater discharge following a record wet year in 2018. Salinity finally rebounded to normal levels following a "flash drought" in September and early October.
A winter with several spells of chilly daytime high temperatures gave way to a spring with daytime highs and nighttime lows regularly above the 30-year average. Fall arrived with another chilly spell, but the year ended with a stretch of very warm weather.
Here's how 2019 temperatures in Williamsburg compare to the normal and record highs and lows for each day.