Quarterly Climate Impacts and Outlook for the Gulf of Maine Region for September – November 2019. Dated December 2019.

Autumn temperatures (averaged over September, October, and November) ranged from 2°C (4°F) below normal to near normal in most areas, with eastern Massachusetts up to 1°C (2°F) above normal.  Autumn precipitation (accumulated from September to November) ranged from 50% of normal to 150% of normal.

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 Gulf of Maine Region for June – August 2019. Dated September 2019.

Summer temperatures (averaged over June, July, and August) were up to 2°C (4°F) above normal for most of the region. Summer precipitation (accumulated from June to August) ranged from 25% of normal to 175% of normal.

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.

Quarterly Climate Impacts and Outlook for the Chesapeake Bay Region for March – May 2019. Dated June 2019.

Spring temperature was above average for most of the Chesapeake Bay watershed. Spring precipitation was up to double historical averages in the northern Chesapeake Bay.

Quarterly Climate Impacts and Outlook for the Gulf of Maine Region for March – May 2019. Dated June 2019.

Spring temperatures (averaged over March, April, and May) were as much as 3°C (5°F) below normal.  Spring precipitation (accumulated from March–May) was near to above normal in most areas but ranged from 75% to 150% of normal.