Lewiston, ME weather in July
July in Lewiston: mild, with frequent rain. Highs 79°F, lows 56°F, about 12 days with rain. This is the peak of the warm season in Lewiston.
- Normal high
- 79°F
- Normal low
- 56°F
- Wet days
- 12
- 3.8 in total
- Muggy days
- 6
- dew point 65°F+
How July changes from start to finish
| July 1 | July 31 | |
|---|---|---|
| Normal high | 78°F | 79°F |
| Normal low | 55°F | 56°F |
| Chance of a wet day | 42% | 39% |
| Sunrise / sunset | 5:01 am / 8:27 pm | 5:27 am / 8:06 pm |
| Daylight | 15.4 h | 14.7 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 July day
- 6 am64°Fdew point 59°F
- 9 am71°Fdew point 60°F
- Noon76°Fdew point 59°F
- 3 pm77°Fdew point 59°F
- 6 pm74°Fdew point 60°F
- 9 pm67°Fdew point 60°F
NOAA hourly normals (local standard time) from Augusta State Airport (26 mi away); average wind 6 mph.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F10 of 31
- Hot dayshigh 90°F or more2 of 31
- Muggy daysdaily mean dew point 65°F or more6 of 31
- Wet daysat least 0.01 in of rain or melted snow12 of 31
- Notable rainat least 0.10 in7 of 31
- Freezing nightslow 32°F or below0 of 31
- Snow on the groundsnow depth 1 in or more0 of 31
Average days per July, counted from daily records for each year 1991-2020.
Rain in July
Normal precipitation is 3.8 in; a dry July brings about 2.5 in and a wet one about 4.5 in (25th and 75th percentiles). About 2 days bring half an inch or more, and about 1 an inch or more.
How July varies from year to year
- Warmest July, 1991-20201999: average high 84°F
- Coolest July2009: average high 72°F
- Wettest July1996: 10.1 in
- Driest July2003: 1.3 in
- Highest reading97°F (July 18, 1999)
- Lowest reading44°F (July 26, 2002)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
July compared with June and August
| June | July | August | |
|---|---|---|---|
| Normal high | 74°F | 79°F | 78°F |
| Normal low | 50°F | 56°F | 54°F |
| Wet days | 14 | 12 | 11 |
| Comfortable days | 15 | 10 | 12 |
| Daylight | 15.4 h | 15.1 h | 14.0 h |
Highs change by +5°F from June and -1°F into August.
Nearby alternatives in July
- Warmer: Lowell, MA115 mi · high 85°F · 10 wet days
- Drier: Edgartown, MA188 mi · high 80°F · 8 wet days
How Lewiston ranks in July
- Normal high333rd warmest of 378 cities; 4th of 5 in Maine
- Wet days317th driest of 378
- Comfortable days55th most of 340
What to pack for Lewiston in July
- A rain jacket or umbrella – rain on about 12 days
- Sunglasses and sunscreen – about 15.1 hours of daylight and highs near 79°F
Heating and cooling
July has 28 heating degree days and 109 cooling degree days (base 65°F), 2% of the year's total heating and cooling demand.
Questions
How hot is Lewiston in July?
The normal high is 79°F and the normal low is 56°F. From 1991 to 2020 the hottest July reading was 97°F (July 18, 1999).
Does it rain a lot in Lewiston in July?
About 12 days in July have at least 0.01 in of precipitation, and the normal total is 3.8 in. The wettest July in 1991-2020 was in 1996 (10.1 in); the driest was in 2003 (1.3 in).
Is July a good time to visit Lewiston?
July ranks 5th of 12 months on our comfort score for Lewiston (66 out of 100). It has about 10 comfortable days and about 2 days at 90°F or hotter. The best months are May, June and September.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Durham (USC00172048), 9.1 mi SE of the city center, 140 ft (78 ft lower than the city). NOAA normals and daily records, 1991-2020.
- Frost dates: Lewiston (USC00174566), 0.1 mi WSW of the city center, 180 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour: Augusta State Airport (USW00014605), 26 mi NE of the city center, 350 ft (132 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Augusta State Airport (726185-14605), 26 mi NE of the city center, 349 ft (131 ft higher than the city). Hourly observations, 1991-2020.
- Not available for this location: cloud cover (no station close enough or similar enough in elevation).