Hydrologic conditions reports provide a monthly overview of the Commonwealth’s water resources including data on precipitation, streamflow, groundwater, and others. For reports that are not available below, please email climate.data@mass.gov.
2026 Hydrologic Conditions Reports
2025
2025 August Hydrologic Conditions
2025 April Hydrologic Conditions
2025 March Hydrologic Conditions
2024
- 2024 December Hydrologic Conditions
- 2024 November Hydrologic Conditions
- 2024 October Hydrologic Conditions
- 2024 September Hydrologic Conditions
- 2024 August Hydrologic Conditions
- 2024 July Hydrologic Conditions
- 2024 June Hydrologic Conditions
- 2024 May Hydrologic Conditions
- 2024 April Hydrologic Conditions
- 2024 March Hydrologic Conditions
- 2024 February Hydrologic Conditions
- 2024 January Hydrologic Conditions
2023
- 2023 December Hydrologic Conditions
- 2023 November Hydrologic Conditions
- 2023 October Hydrologic Conditions
- 2023 September Hydrologic Conditions
- 2023 August Hydrologic Conditions
- 2023 July Hydrologic Conditions
- 2023 June Hydrologic Conditions
- 2023 May Hydrologic Conditions
- 2023 April Hydrologic Conditions
- 2023 March Hydrologic Conditions
- 2023 February Hydrologic Conditions
- 2023 January Hydrologic Conditions
2022 / 2021
2022
- December 2022 Hydrologic Conditions
- November 2022 Hydrologic Conditions
- October 2022 Hydrologic Conditions
- 2022 September Hydrologic Conditions
- 2022 August Hydrologic Conditions
- 2022 July Hydrologic Conditions
- 2022 June Hydrologic Conditions
- 2022 May Hydrologic Conditions
- 2022 April Hydrologic Conditions
- 2022 March Hydrologic Conditions
- 2022 February Hydrologic Conditions
- 2022 January Hydrologic Conditions
2021
- 2021 December Hydrologic Conditions
- 2021 November Hydrologic Conditions
- 2021 October Hydrologic Conditions
- 2021 September Hydrologic Conditions
- 2021 August Hydrologic Conditions
- 2021 July Hydrologic Conditions
- June 2021 Hydrologic Conditions
- May 2021 Hydrologic Conditions
- April 2021 Hydrologic Conditions
- March 2021 Hydrologic Conditions
- February 2021 Hydrologic Conditions
- January 2021 Hydrologic Conditions
2020 / 2019
2020
- December 2020 Hydrologic Conditions
- November 2020 Hydrologic Conditions
- October 2020 Hydrologic Conditions
- September 2020 Hydrologic Conditions
- August 2020 Hydrologic Conditions
- July 2020 Hydrologic Conditions
- June 2020 Hydrologic Conditions
- May 2020 Hydrologic Conditions
- April 2020 Hydrologic Conditions
- March 2020 Hydrologic Conditions
- February 2020 Hydrologic Conditions
- January 2020 Hydrologic Conditions
2019
- December 2019 Hydrologic Conditions
- November 2019 Hydrologic Conditions
- October 2019 Hydrologic Conditions
- September 2019 Hydrologic Conditions
- August 2019 Hydrologic Conditions
- July 2019 Hydrologic Conditions
- June 2019 Hydrologic Conditions
- May 2019 Hydrologic Conditions
- April 2019 Hydrologic Conditions
- March 2019 Hydrologic Conditions
- February 2019 Hydrologic Conditions
- January 2019 Hydrologic Conditions
2018 / 2017
2018
- December 2018 Hydrologic Conditions
- November 2018 Hydrologic Conditions
- October 2018 Hydrologic Conditions
- September 2018 Hydrologic Conditions
- August 2018 Hydrologic Conditions
- July 2018 Hydrologic Conditions
- June 2018 Hydrologic Conditions
- May 2018 Hydrologic Conditions
- April 2018 Hydrologic Conditions
- March 2018 Hydrologic Conditions
- February 2018 Hydrologic Conditions
- January 2018 Hydrologic Conditions
2017
- DCR December 2017 Hydrologic Conditions
- DCR November 2017 Hydrologic Conditions
- DCR October 2017 Hydrologic Conditions
- DCR September 2017 Hydrologic Conditions
- DCR August 2017 Hydrologic Conditions
- DCR July 2017 Hydrologic Conditions
- DCR June 2017 Hydrologic Conditions
- DCR May 2017 Hydrologic Conditions
- DCR April 2017 Hydrologic Conditions
- DCR March 2017 Hydrologic Conditions
- DCR February 2017 Hydrologic Conditions
- January 2017 Hydrologic Conditions
Additional Resources
USGS Data
Current streamflow and groundwater data can be found on the USGS’ National Water Dashboard