Rainfall totals Portland, ME
Through Oct 7, 2026, Portland has received 31.89 inches of rain for the year, according to the official daily climate report. The normal year-to-date total is 35.21 inches. The normal figure is what the city would typically have seen by this point in the calendar. This reading comes from the station gauge at PORTLAND INTL JET in the National Weather Service's daily climate report.
as of
Data from Portland Jetport, with records back to 1940. Across the record from 1940, 100 percent of days have a reading, with 100 percent in 2025.
Most recent rainfall
0.03 inches of rain fell on Oct 2, 2026, the latest measurable rainfall this year.
PORTLAND INTL JET saw no measurable rain on Oct 7, 2026, according to the National Weather Service daily climate report.
Official rainfall report for Oct 7, 2026
| Measured | Normal | vs normal | |
|---|---|---|---|
| Rain on Oct 7, 2026 | 0.00 inches | 0.18 inches | -0.18 inches |
| Last 48 hours | 0.00 inches | ||
| Last 72 hours | 0.00 inches | ||
| Last 7 days | 0.03 inches | ||
| Month to date | 0.03 inches | 1.09 inches | -1.06 inches (-97%) |
| Year to date | 31.89 inches | 35.21 inches | -3.32 inches (-9%) |
| Record for Oct 7 | 3.93 inches | 1873 |
Source: National Weather Service daily climate report for PORTLAND INTL JET, issued the morning after Oct 7, 2026. The local National Weather Service office issues the daily climate report for the airport station the next morning, and that report is the official figure.
How much rain did Portland get?
Days with measurable rain, 2026
| Date | Rainfall |
|---|---|
| Oct 2, 2026 | 0.03 inches |
| Sep 30, 2026 | 0.03 inches |
| Sep 29, 2026 | 0.04 inches |
| Sep 28, 2026 | 1.09 inches |
| Sep 27, 2026 | 1.88 inches |
| Sep 26, 2026 | 0.46 inches |
| Sep 20, 2026 | 0.05 inches |
| Sep 18, 2026 | 0.01 inches |
| Sep 17, 2026 | 0.74 inches |
| Sep 13, 2026 | 0.34 inches |
| Sep 10, 2026 | 0.27 inches |
| Sep 9, 2026 | 0.12 inches |
| Sep 8, 2026 | 0.01 inches |
| Sep 6, 2026 | 0.02 inches |
| Sep 5, 2026 | 0.01 inches |
| Sep 3, 2026 | 0.05 inches |
| Aug 23, 2026 | 0.17 inches |
| Aug 20, 2026 | 0.01 inches |
| Aug 17, 2026 | 0.03 inches |
| Aug 13, 2026 | 1.37 inches |
| Aug 11, 2026 | 0.04 inches |
| Aug 3, 2026 | 1.02 inches |
| Aug 2, 2026 | 0.07 inches |
| Jul 30, 2026 | 0.03 inches |
| Jul 29, 2026 | 0.07 inches |
| Jul 22, 2026 | 0.03 inches |
| Jul 21, 2026 | 0.23 inches |
| Jul 18, 2026 | 0.09 inches |
| Jul 16, 2026 | 0.17 inches |
| Jul 2, 2026 | 0.01 inches |
With 1.98 inches on May 14, 2026, this is the 179th wettest of the 11,116 measurable rain days in the Portland Jetport record, which begins in 1940. That is the most rain recorded at this station on May 14 since 1940.
Through Oct 3, 2026, the GHCN-Daily station record shows 31.89 inches of measurable rain so far this year, falling over a 108-day span. Station observations are from GHCN-Daily, with a 1-3 day lag and quality checks by NOAA.
Portland rainfall by month, 2026
| Month | Rainfall | Normal | vs normal |
|---|---|---|---|
| January | 2.40 inches | 3.50 inches | -1.10 inches (-31%) |
| February | 1.36 inches | 3.54 inches | -2.18 inches (-62%) |
| March | 4.22 inches | 4.08 inches | +0.14 inches (+3%) |
| April | 3.09 inches | 4.41 inches | -1.32 inches (-30%) |
| May | 7.02 inches | 3.67 inches | +3.35 inches (+91%) |
| June | 5.31 inches | 4.15 inches | +1.16 inches (+28%) |
| July | 0.63 inches | 3.43 inches | -2.80 inches (-82%) |
| August | 2.71 inches | 3.57 inches | -0.86 inches (-24%) |
| September | 5.12 inches | 3.77 inches | +1.35 inches (+36%) |
| October | 0.03 inches | 5.25 inches |
October is still in progress; figures run through Oct 3, 2026. Averages are 1991-2020 normals from NCEI.
Rainfall days at each threshold in Portland
| Year | 0.5+ in. | 1+ in. | 2+ in. | 3+ in. |
|---|---|---|---|---|
| 2025 | 25 | 5 | 1 | 0 |
| 2024 | 28 | 13 | 5 | 0 |
| 2023 | 39 | 18 | 3 | 0 |
| 2022 | 30 | 16 | 3 | 0 |
| 2021 | 32 | 12 | 2 | 0 |
| 2020 | 26 | 14 | 2 | 0 |
| 2019 | 39 | 12 | 1 | 1 |
| 2018 | 42 | 15 | 2 | 0 |
| 2017 | 31 | 12 | 0 | 0 |
| 2016 | 26 | 8 | 4 | 1 |
| Average | 29.6 | 10.8 | 2.1 | 0.6 |
A day counts when its rainfall total meets or passes the column amount, from Portland Jetport records in GHCN-Daily. Every complete year starting with 1940 counts toward the average, 85 years in total.
Past rainfall years in Portland
All-time rainfall records
| Wettest day | 11.74 inches | Oct 21, 1996 |
|---|---|---|
| Wettest year | 66.40 inches | 2005 |
| Driest year | 25.28 inches | 1941 |
| Average year | 44.96 inches | 85 complete years on record |
| Rain days a year | 129 | average, 0.01 inch or more |
| Record begins | 1940 | 31,340 daily readings |
Monthly rainfall normals
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inches | 3.50 | 3.54 | 4.08 | 4.41 | 3.67 | 4.15 | 3.43 | 3.57 | 3.77 | 5.25 | 4.25 | 4.50 | 48.12 |
Averages are 1991-2020 normals from NCEI.
The daily climate report is issued by the local National Weather Service forecast office and delivered to this page by the Iowa Environmental Mesonet of Iowa State University. Under 17 U.S.C. 105, no copyright attaches to the government-produced figures on this page, including reports, alerts, station observations, and normals, which were created by the National Weather Service and other NOAA offices. The notice that 17 U.S.C. 403 requires appears in this sentence. It does not imply endorsement by or affiliation with those agencies. See: Data sources and attribution.