Portland, ME weather in June
Portland is mild in June, with frequent rain: highs average 74°F and nights drop to about 55°F. There are about 12 days with rain. A great month for outdoor plans.
- Normal high
- 74°F
- Normal low
- 55°F
- Wet days
- 12
- 4.2 in total
- Muggy days
- 2
- dew point 65°F+
How June changes from start to finish
| June 1 | June 30 | |
|---|---|---|
| Normal high | 69°F | 78°F |
| Normal low | 51°F | 59°F |
| Chance of a wet day | 39% | 37% |
| Sunrise / sunset | 5:02 am / 8:15 pm | 5:02 am / 8:26 pm |
| Daylight | 15.2 h | 15.4 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Eastern Time).
A typical June day
- 6 am59°Fdew point 54°F
- 9 am67°Fdew point 55°F
- Noon70°Fdew point 55°F
- 3 pm70°Fdew point 55°F
- 6 pm66°Fdew point 54°F
- 9 pm62°Fdew point 54°F
NOAA hourly normals (local standard time) from Portland Intl Jetport (2 mi away); average wind 7 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F15 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph6 of 30
- Hot dayshigh 90°F or more1 of 30
- Muggy daysdaily mean dew point 65°F or more2 of 30
- Wet daysat least 0.01 in of rain or melted snow12 of 30
- Notable rainat least 0.10 in7 of 30
- Freezing nightslow 32°F or below0 of 30
- Snow on the groundsnow depth 1 in or more0 of 30
Average days per June, counted from daily records for each year 1991-2020.
Rain in June
Normal precipitation is 4.2 in; a dry June brings about 2.3 in and a wet one about 5.3 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How June varies from year to year
- Warmest June, 1991-20202001: average high 77°F
- Coolest June2009: average high 68°F
- Wettest June2006: 9.2 in
- Driest June1997: 0.8 in
- Highest reading98°F (June 28, 1991)
- Lowest reading37°F (June 1, 2020)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
June compared with May and July
| May | June | July | |
|---|---|---|---|
| Normal high | 64°F | 74°F | 80°F |
| Normal low | 46°F | 55°F | 61°F |
| Wet days | 13 | 12 | 11 |
| Comfortable days | 12 | 15 | 10 |
| Daylight | 14.7 h | 15.4 h | 15.1 h |
Highs change by +10°F from May and +6°F into July.
Nearby alternatives in June
- Warmer: Lowell, MA89 mi · high 79°F · 11 wet days
How Portland ranks in June
- Normal high328th warmest of 378 cities; 4th of 5 in Maine
- Wet days292nd driest of 378
- Comfortable days50th most of 340
What to pack for Portland in June
- A rain jacket or umbrella – rain on about 12 days
Heating and cooling
June has 89 heating degree days and 68 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Portland in June?
The normal high is 74°F and the normal low is 55°F. From 1991 to 2020 the hottest June reading was 98°F (June 28, 1991).
Does it rain a lot in Portland in June?
About 12 days in June have at least 0.01 in of precipitation, and the normal total is 4.2 in. The wettest June in 1991-2020 was in 2006 (9.2 in); the driest was in 1997 (0.8 in).
Is June a good time to visit Portland?
June ranks 1st of 12 months on our comfort score for Portland (74 out of 100). It has about 15 comfortable days and about 1 day at 90°F or hotter. The best months are June and September.
Where the numbers come from
- Temperature, rain, snowfall, snow depth, frost dates and humidity and wind by hour: Portland Intl Jetport (USW00014764), 2.4 mi WSW of the city center, 45 ft . NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Portland International Jetport Airport (726060-14764), 2.8 mi WSW of the city center, 44 ft . Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).