Maine weather in May: Statewide normals and every place, NOAA 1991-2020
In May, Maine's statewide normal high is 63°F and normal low 40°F; normal highs run from 60°F in Eastport to 68°F in Fryeburg (NOAA 1991-2020 normals).
- Statewide normal high
- 63°FMay, 1991-2020
- Statewide normal low
- 40°FMay, 1991-2020
- Statewide normal precipitation
- 3.68 inMay
- Warmest place
- 68°Fnormal high, Fryeburg
- Coolest place
- 60°Fnormal high, Eastport
Where is Maine warmest and wettest in May?
Fryeburg has the warmest May afternoons (68°F) and Eastport the coolest (60°F). Kennebunkport gets the most precipitation (4.21 in) and Lewiston the least (3.18 in).
Statewide, May averaged 52.4°F in 2021, 54.4°F in 2022, 51.3°F in 2023, 55.2°F in 2024, 52.6°F in 2025, 50.8°F in 2026, against a 1991-2020 normal of 51.5°F.
| Place | High | Low | Precip. | Snow |
|---|---|---|---|---|
| Portland | 64°F | 46°F | 3.67 | 0.0 |
| Lewiston | 65°F | 46°F | 3.18 | 0.0 |
| Bangor | 66°F | 43°F | 3.34 | 0.0 |
| Sanford | 68°F | 41°F | 3.83 | – |
| Augusta | 66°F | 45°F | 3.27 | – |
| Waterville | 66°F | 43°F | 3.33 | – |
| Brunswick | 64°F | 44°F | 4.06 | 0.0 |
| Orono | 66°F | 43°F | – | – |
| Bath | 63°F | 41°F | 3.56 | 0.0 |
| Presque Isle | 65°F | 41°F | 3.29 | 0.2 |
| Old | 65°F | 41°F | 3.47 | – |
| Caribou | 63°F | 41°F | 3.46 | 0.8 |
| Belfast | 63°F | 41°F | 3.86 | 0.0 |
| Gardiner | 66°F | 44°F | 3.66 | 0.0 |
| Houlton | 64°F | 39°F | 3.46 | – |
| Farmington | 65°F | 41°F | 3.87 | 0.2 |
| Millinocket | 65°F | 42°F | 3.42 | – |
| Rumford | 67°F | 43°F | 3.69 | 0.0 |
| Dover-Foxcroft | 65°F | 40°F | 3.34 | 0.1 |
| Cape Neddick | 66°F | 44°F | 3.93 | 0.0 |
| Lincoln | 66°F | 43°F | 3.72 | – |
| Madison | 64°F | 42°F | 3.28 | 0.0 |
| Fort Kent | 61°F | 37°F | 3.31 | 0.1 |
| Bridgton | 66°F | 42°F | 3.71 | 0.0 |
| Fryeburg | 68°F | 42°F | 3.69 | – |
| Van Buren | 62°F | 39°F | 3.61 | 0.1 |
| Kennebunkport | 62°F | 43°F | 4.21 | 0.0 |
| Eastport | 60°F | 43°F | 3.27 | 0.0 |
| Wiscasset | 65°F | 42°F | 3.46 | – |
| Livermore Falls | 66°F | 41°F | 3.42 | 0.3 |
| Limestone | 61°F | 39°F | 3.66 | – |
| Woodland | 64°F | 46°F | 3.82 | – |
| Greenville | 62°F | 41°F | 3.59 | – |
| Gray | 64°F | 44°F | 3.56 | 0.0 |
| Corinna | 67°F | 43°F | 3.64 | 0.0 |
| Newcastle | 65°F | 45°F | 3.80 | 0.0 |
| Bethel | 65°F | 42°F | 3.78 | – |
| Turner | 65°F | 43°F | 3.79 | 0.3 |
| Rangeley | 63°F | 37°F | 3.65 | 0.5 |
| Danforth | 64°F | 38°F | 3.67 | 0.0 |
| Patten | 62°F | 40°F | – | – |
| Vanceboro | 64°F | 40°F | 3.93 | 0.1 |
| Acadia National Park | 65°F | 45°F | 4.50 | – |
| Allagash | 63°F | 35°F | 2.88 | 0.4 |
| Andover 2 | 64°F | 39°F | 4.37 | 0.2 |
| Barnard | 65°F | 41°F | 3.92 | 0.0 |
| Brassua Dam | 62°F | 38°F | 3.68 | 0.3 |
| Bridgewater | 65°F | 39°F | 3.66 | 0.5 |
| Clayton Lake | 61°F | 37°F | 3.63 | – |
| Durham | 65°F | 40°F | 3.59 | 0.0 |
| East Hiram | 66°F | 41°F | 3.82 | 0.0 |
| East Sangerville | 64°F | 43°F | 3.76 | – |
| East Surry | 63°F | 42°F | 3.71 | – |
| Eustis | 62°F | 37°F | 3.76 | 0.1 |
| Frenchville Aroostook Airport | 62°F | 42°F | 3.07 | – |
| Grand Lake Stream | 64°F | 42°F | 3.33 | 0.2 |
| Harmony | 67°F | 41°F | 3.51 | 0.0 |
| Hartford | 64°F | 42°F | 3.86 | 0.3 |
| Hollis | 66°F | 41°F | 3.94 | 0.1 |
| Jackman | 63°F | 37°F | 3.67 | 0.2 |
| Jonesboro | 61°F | 42°F | 3.90 | – |
| Long Falls Dam | 62°F | 40°F | 3.61 | 0.0 |
| Middle Dam | 62°F | 39°F | 3.69 | – |
| Moosehead | 63°F | 39°F | 3.43 | 0.3 |
| New Sharon | 65°F | 42°F | 3.65 | 0.2 |
| Pittston Farm | 62°F | 38°F | 3.67 | 0.2 |
| Poland | 64°F | 43°F | 3.70 | 0.1 |
| Robbinston | 62°F | 41°F | 4.35 | 0.2 |
| Sebec Lake | 65°F | 39°F | 3.75 | 0.0 |
| Tenants Harbor | 61°F | 43°F | 3.53 | 0.0 |
| Topsfield 2 | 65°F | 41°F | 4.23 | 0.8 |
| Wesley | 63°F | 43°F | 4.10 | – |
| West Buxton (2 mi NNW) | 67°F | 43°F | 3.80 | – |
| West Rockport (1 mi NNW) | 62°F | 44°F | 4.22 | 0.0 |
| Westport Island | 63°F | 44°F | 3.60 | – |
| Windham (2 mi NW) | 65°F | 44°F | 3.61 | – |
Source: NOAA NCEI nClimDiv statewide normals; NOAA NCEI 1991-2020 monthly normals for each station.