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
2026 July Hydrologic Conditions
2026 June Hydrologic Conditions
2026 May Hydrologic Conditions
2026 April Hydrologic Conditions
2026 March Hydrologic Conditions
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