Quarterly Climate Impacts and Outlook for the Great Lakes Region for December 2019 – February 2020.  Dated March 2020.

Most of the Great Lakes states had one of their top 10 warmest winters on record.  Winter was drier with the basin seeing 84% of average.  There was below average ice cover due to warm air temperatures and lack of consecutive days below freezing.

Quarterly Climate Impacts and Outlook for the Chesapeake Bay Region for December 2019 – February 2020. Dated March 2020.

The entire region experienced an unusually mild winter, which ranked among the ten warmest on record for many sites.  Precipitation departures from normal show that the Chesapeake Bay watershed experienced both more and less precipitation than historical averages. 

Quarterly Climate Impacts and Outlook for the Northeast Region for December 2019 – February 2020.  Dated March 2020.

The Northeast had its seventh warmest winter at 4.1°F above normal.  This winter was among the 10 warmest for all 12 Northeast states. The Northeast saw 113% of normal precipitation during winter, ranking in the wettest third of all years.

Quarterly Climate Impacts and Outlook for the Chesapeake Bay Region for September – November 2019. Dated December 2019.

Quarterly Climate Impacts and Outlook for the Northeast Region for September – November 2019.  Dated December 2019.

The Northeast's autumn average temperature was 0.1°F above normal, ranking in the middle third of all years.  The Northeast saw 95% of normal precipitation during autumn, ranking in the middle third of all years.

Quarterly Climate Impacts and Outlook for the Great Lakes Region for September – November 2019.  Dated December 2019.

Autumn temperatures ranged from 2°C (4°F) below normal to 2°C (4°F) above normal.  Autumn precipitation ranged from 88% to 125% of average, with the overall basin seeing 115% of average.

Quarterly Climate Impacts and Outlook for the Great Lakes Region for June – August 2019.  Dated September 2019.

June temperatures ranged from 3°C (5°F) below normal to near normal. July was warm, with temperatures up to 3°C (5°F) above normal. Temperatures during August and for summer were within 1°C (2°F) of normal for most of the basin. The basin experienced a wet period from the fall of 2018 through the spring. This extended into June, with all basins but Superior being wetter than average and the overall basin seeing 109% of average in June.

Quarterly Climate Impacts and Outlook for the Chesapeake Bay Region for June – August 2019. Dated September 2019.

Temperature was above normal for much of the region throughout the summer months, and July ranked as one of the ten all-time warmest months on record for several locations.  High intensity rainfall events occurred throughout the Chesapeake Bay watershed, resulting in two rare National Weather Service Flash Flood Emergencies.

Quarterly Climate Impacts and Outlook for the Northeast Region for June – August 2019.  Dated September 2019.

The Northeast's summer average temperature was 0.8°F above normal, ranking in the warmest third of all years.  The Northeast received 108% of normal precipitation during summer, ranking in the wettest third of all years.

Quarterly Climate Impacts and Outlook for the Great Lakes Region for March – May 2019.  Dated June 2019.

Across much of the basin, spring averaged out to be colder than normal, with temperatures as much as 3°C (5°F) below normal while the far southeastern areas were near normal for the spring. Spring precipitation ranged from 101% to 118% of average.