Lewiston weather in May
In May, Lewiston sees average daytime highs of 62°F and overnight lows near 46°F, with 3.1 in of precipitation across 10.5 wet days and about 14.5 hours of daylight. It is the 5th-warmest and 9th-wettest month of the year here.
Highs climb over the month, from about 58°F in the first days to 66°F by the end. The sky is clear or mostly clear about 23% of the time in May, and the air most often feels dry.
Daylight stretches from about 13 h 54 min at the start of May to 15 hours by month's end. Set against the rest of the year, May is Lewiston's 12th-clearest and 8th-windiest month. For the whole year in context, see Lewiston's year-round climate.
- Daytime high
- 62°
- 5th warmest
- Overnight low
- 46°
- 8th coldest
- Precipitation
- 3.1 in
- 10.5 wet days
- Daylight
- 14 h 36 min
- 4:20 AM – 6:54 PM
- Cloud cover
- 66%
- 12th clearest
- Wind
- 7 mph
- 8th windiest
- Solar energy
- 5.47 kWh/m²
- Travel score
- 5.2
- out of 10
Lewiston is city in Androscoggin County, Maine, United States.
- Density
- 393/km²
- people per km²
- Founded
- 1795
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in May
Highs climb over the month, from about 58°F in the first days to 66°F by the end.
A typical May day in Lewiston reaches about 62°F in the afternoon and slips back to 46°F overnight — a 16°F spread between the day's warmth and the night's chill. On most days the high lands between 52°F and 73°F. Set against its neighbours, May runs about 11°F warmer than April and about 10°F cooler than June.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°F) | 57 | 58 | 58 | 58 | 59 | 59 | 59 | 60 | 60 | 60 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 63 | 63 | 64 | 64 | 64 | 65 | 65 | 65 | 65 | 66 | 66 | 66 | 67 | 67 |
| Avg low (°F) | 42 | 42 | 42 | 42 | 43 | 43 | 43 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 46 | 46 | 46 | 46 | 47 | 47 | 47 | 48 | 48 | 49 | 49 | 49 | 49 | 50 | 50 | 51 | 51 |
| Avg high (°F) | Avg low (°F) | |
|---|---|---|
| 1 | 57 | 42 |
| 2 | 58 | 42 |
| 3 | 58 | 42 |
| 4 | 58 | 42 |
| 5 | 59 | 43 |
| 6 | 59 | 43 |
| 7 | 59 | 43 |
| 8 | 60 | 44 |
| 9 | 60 | 44 |
| 10 | 60 | 44 |
| 11 | 61 | 44 |
| 12 | 61 | 45 |
| 13 | 61 | 45 |
| 14 | 62 | 45 |
| 15 | 62 | 46 |
| 16 | 62 | 46 |
| 17 | 62 | 46 |
| 18 | 63 | 46 |
| 19 | 63 | 47 |
| 20 | 64 | 47 |
| 21 | 64 | 47 |
| 22 | 64 | 48 |
| 23 | 65 | 48 |
| 24 | 65 | 49 |
| 25 | 65 | 49 |
| 26 | 65 | 49 |
| 27 | 66 | 49 |
| 28 | 66 | 50 |
| 29 | 66 | 50 |
| 30 | 67 | 51 |
| 31 | 67 | 51 |
How May really feels in Lewiston
Once humidity and wind are folded in, May averages 0 days that feel above 90°F and 0 that feel at or below 32°F — the comfort signal a plain temperature reading hides.
May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Lewiston weather by month
How May compares with the rest of the year at a glance. May is the 5th-warmest and 9th-wettest month here — the current month is highlighted below.
| Month | High / Low (°F) | Rainfall (inches) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 29° / 14° | 3.2 | 8.9 | 6.9 | 9.1 | 0.0 |
| Feb | 32° / 16° | 3.0 | 8.6 | 6.7 | 10.2 | 0.0 |
| Mar | 39° / 25° | 3.8 | 10.3 | 6 | 11.6 | 0.2 |
| Apr | 52° / 36° | 3.8 | 10.5 | 2.2 | 13.2 | 2.6 |
| May | 62° / 46° | 3.1 | 10.5 | 0.1 | 14.5 | 5.2 |
| Jun | 72° / 56° | 3.7 | 10.7 | 0 | 15.2 | 6.4 |
| Jul | 78° / 62° | 3.1 | 10.1 | 0 | 15 | 6.7 |
| Aug | 77° / 61° | 3.1 | 9 | 0 | 13.8 | 7.1 |
| Sep | 69° / 54° | 3.4 | 8.6 | 0 | 12.3 | 6.7 |
| Oct | 57° / 43° | 4.5 | 9.7 | 0.3 | 10.8 | 4.2 |
| Nov | 46° / 33° | 3.6 | 9.5 | 2 | 9.4 | 1.2 |
| Dec | 35° / 22° | 4.0 | 10.6 | 6.3 | 8.8 | 0.0 |
Cloud cover in May
The sky is clear or mostly clear about 23% of the time in May, the cloudiest month of the year.
Beyond those clear spells, partly cloudy skies cover about 15% of May, with mostly cloudy or overcast conditions the remaining 61%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 38 | 38 | 39 | 39 | 39 | 39 | 38 | 38 | 38 | 38 | 38 | 39 | 39 | 39 | 39 | 39 | 38 | 38 | 39 | 39 | 39 | 38 | 38 | 38 | 39 | 40 | 39 | 39 | 39 | 38 | 38 |
| Cloudier (%) | 62 | 62 | 61 | 61 | 61 | 61 | 62 | 62 | 62 | 62 | 62 | 61 | 61 | 61 | 61 | 61 | 62 | 62 | 61 | 61 | 61 | 62 | 62 | 62 | 61 | 60 | 61 | 61 | 61 | 62 | 62 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 38 | 62 |
| 2 | 38 | 62 |
| 3 | 39 | 61 |
| 4 | 39 | 61 |
| 5 | 39 | 61 |
| 6 | 39 | 61 |
| 7 | 38 | 62 |
| 8 | 38 | 62 |
| 9 | 38 | 62 |
| 10 | 38 | 62 |
| 11 | 38 | 62 |
| 12 | 39 | 61 |
| 13 | 39 | 61 |
| 14 | 39 | 61 |
| 15 | 39 | 61 |
| 16 | 39 | 61 |
| 17 | 38 | 62 |
| 18 | 38 | 62 |
| 19 | 39 | 61 |
| 20 | 39 | 61 |
| 21 | 39 | 61 |
| 22 | 38 | 62 |
| 23 | 38 | 62 |
| 24 | 38 | 62 |
| 25 | 39 | 61 |
| 26 | 40 | 60 |
| 27 | 39 | 61 |
| 28 | 39 | 61 |
| 29 | 39 | 61 |
| 30 | 38 | 62 |
| 31 | 38 | 62 |
Chance of precipitation in May
Lewiston gets around 3.1 in of rain and snow over 10.5 wet days in May. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 34% and peaks near 35% on the wettest days, and about 0 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 35 | 34 | 34 | 33 | 33 | 33 | 33 | 33 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 34 | 35 | 35 |
| Snow chance (%) | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 35 | 2 |
| 2 | 34 | 2 |
| 3 | 34 | 1 |
| 4 | 33 | 1 |
| 5 | 33 | 1 |
| 6 | 33 | 1 |
| 7 | 33 | 1 |
| 8 | 33 | 1 |
| 9 | 34 | 1 |
| 10 | 34 | 1 |
| 11 | 34 | 0 |
| 12 | 34 | 0 |
| 13 | 34 | 0 |
| 14 | 34 | 0 |
| 15 | 34 | 0 |
| 16 | 34 | 0 |
| 17 | 34 | 0 |
| 18 | 34 | 0 |
| 19 | 34 | 0 |
| 20 | 34 | 0 |
| 21 | 34 | 0 |
| 22 | 34 | 0 |
| 23 | 34 | 0 |
| 24 | 34 | 0 |
| 25 | 34 | 0 |
| 26 | 34 | 0 |
| 27 | 34 | 0 |
| 28 | 34 | 0 |
| 29 | 34 | 0 |
| 30 | 35 | 0 |
| 31 | 35 | 0 |
Humidity in May
Most of May feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, May lands in the dry band about 93% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 99 | 99 | 99 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 98 | 97 | 96 | 96 | 95 | 95 | 94 | 93 | 92 | 91 | 89 | 89 | 86 | 85 | 84 | 83 | 82 | 81 | 80 |
| Comfortable (%) | 1 | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 8 | 9 | 10 | 11 | 12 | 12 | 13 | 14 |
| Humid (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 5 | 5 | 5 |
| Muggy (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | |
|---|---|---|---|---|
| 1 | 99 | 1 | 0 | 0 |
| 2 | 99 | 1 | 0 | 0 |
| 3 | 99 | 1 | 0 | 0 |
| 4 | 98 | 2 | 0 | 0 |
| 5 | 98 | 2 | 0 | 0 |
| 6 | 98 | 2 | 0 | 0 |
| 7 | 98 | 2 | 0 | 0 |
| 8 | 98 | 2 | 0 | 0 |
| 9 | 98 | 2 | 0 | 0 |
| 10 | 98 | 2 | 0 | 0 |
| 11 | 98 | 2 | 0 | 0 |
| 12 | 98 | 2 | 0 | 0 |
| 13 | 98 | 2 | 0 | 0 |
| 14 | 97 | 3 | 0 | 0 |
| 15 | 96 | 3 | 1 | 0 |
| 16 | 96 | 3 | 1 | 0 |
| 17 | 95 | 4 | 1 | 0 |
| 18 | 95 | 4 | 1 | 0 |
| 19 | 94 | 5 | 1 | 0 |
| 20 | 93 | 5 | 2 | 0 |
| 21 | 92 | 6 | 2 | 0 |
| 22 | 91 | 7 | 2 | 0 |
| 23 | 89 | 8 | 3 | 0 |
| 24 | 89 | 8 | 3 | 0 |
| 25 | 86 | 9 | 4 | 1 |
| 26 | 85 | 10 | 4 | 1 |
| 27 | 84 | 11 | 4 | 1 |
| 28 | 83 | 12 | 4 | 1 |
| 29 | 82 | 12 | 5 | 1 |
| 30 | 81 | 13 | 5 | 1 |
| 31 | 80 | 14 | 5 | 1 |
Wind in May
Winds average 7 mph in May.
Across May, daily wind ranges from about 6 mph on the calmest days to 7 mph at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (mph) | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (mph) | Feels | |
|---|---|---|
| 1 | 7 | calm |
| 2 | 7 | calm |
| 3 | 7 | calm |
| 4 | 7 | calm |
| 5 | 7 | calm |
| 6 | 7 | calm |
| 7 | 7 | calm |
| 8 | 7 | calm |
| 9 | 7 | calm |
| 10 | 7 | calm |
| 11 | 7 | calm |
| 12 | 7 | calm |
| 13 | 7 | calm |
| 14 | 7 | calm |
| 15 | 7 | calm |
| 16 | 7 | calm |
| 17 | 7 | calm |
| 18 | 7 | calm |
| 19 | 7 | calm |
| 20 | 7 | calm |
| 21 | 7 | calm |
| 22 | 7 | calm |
| 23 | 7 | calm |
| 24 | 7 | calm |
| 25 | 7 | calm |
| 26 | 7 | calm |
| 27 | 7 | calm |
| 28 | 7 | calm |
| 29 | 7 | calm |
| 30 | 7 | calm |
| 31 | 6 | calm |
Sunrise & sunset in May
Daylight runs from about 13 h 54 min at the start of May to 15 hours by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 66 minutes over May. Sunrise moves from 4:40 AM to 4:07 AM, and sunset from 6:36 PM to 7:09 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.9 | 14.0 | 14.0 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.3 | 14.3 | 14.4 | 14.4 | 14.4 | 14.5 | 14.5 | 14.6 | 14.6 | 14.6 | 14.7 | 14.7 | 14.7 | 14.8 | 14.8 | 14.8 | 14.9 | 14.9 | 14.9 | 14.9 | 15.0 | 15.0 | 15.0 |
| Sunrise (AM) | 4:40 | 4:39 | 4:37 | 4:36 | 4:34 | 4:33 | 4:31 | 4:30 | 4:29 | 4:28 | 4:26 | 4:25 | 4:24 | 4:23 | 4:22 | 4:20 | 4:19 | 4:18 | 4:17 | 4:16 | 4:15 | 4:14 | 4:13 | 4:13 | 4:12 | 4:11 | 4:10 | 4:09 | 4:09 | 4:08 | 4:07 |
| Sunset (PM) | 6:36 | 6:37 | 6:39 | 6:40 | 6:41 | 6:42 | 6:43 | 6:45 | 6:46 | 6:47 | 6:48 | 6:49 | 6:50 | 6:52 | 6:53 | 6:54 | 6:55 | 6:56 | 6:57 | 6:58 | 6:59 | 7:00 | 7:01 | 7:02 | 7:03 | 7:04 | 7:05 | 7:06 | 7:07 | 7:08 | 7:09 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.9 | 4:40 | 6:36 |
| 2 | 14.0 | 4:39 | 6:37 |
| 3 | 14.0 | 4:37 | 6:39 |
| 4 | 14.1 | 4:36 | 6:40 |
| 5 | 14.1 | 4:34 | 6:41 |
| 6 | 14.2 | 4:33 | 6:42 |
| 7 | 14.2 | 4:31 | 6:43 |
| 8 | 14.2 | 4:30 | 6:45 |
| 9 | 14.3 | 4:29 | 6:46 |
| 10 | 14.3 | 4:28 | 6:47 |
| 11 | 14.4 | 4:26 | 6:48 |
| 12 | 14.4 | 4:25 | 6:49 |
| 13 | 14.4 | 4:24 | 6:50 |
| 14 | 14.5 | 4:23 | 6:52 |
| 15 | 14.5 | 4:22 | 6:53 |
| 16 | 14.6 | 4:20 | 6:54 |
| 17 | 14.6 | 4:19 | 6:55 |
| 18 | 14.6 | 4:18 | 6:56 |
| 19 | 14.7 | 4:17 | 6:57 |
| 20 | 14.7 | 4:16 | 6:58 |
| 21 | 14.7 | 4:15 | 6:59 |
| 22 | 14.8 | 4:14 | 7:00 |
| 23 | 14.8 | 4:13 | 7:01 |
| 24 | 14.8 | 4:13 | 7:02 |
| 25 | 14.9 | 4:12 | 7:03 |
| 26 | 14.9 | 4:11 | 7:04 |
| 27 | 14.9 | 4:10 | 7:05 |
| 28 | 14.9 | 4:09 | 7:06 |
| 29 | 15.0 | 4:09 | 7:07 |
| 30 | 15.0 | 4:08 | 7:08 |
| 31 | 15.0 | 4:07 | 7:09 |
Solar energy in May
Average shortwave solar energy reaching the ground each day in May, about 5.47 kWh/m².
For context, solar energy here swings from a low near 1.48 kWh/m² to a high of 5.94 kWh/m² in July across the year — May's 5.47 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 5.2 | 5.2 | 5.2 | 5.3 | 5.3 | 5.3 | 5.3 | 5.3 | 5.4 | 5.4 | 5.4 | 5.4 | 5.4 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 | 5.6 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 5.2 | Bright |
| 2 | 5.2 | Bright |
| 3 | 5.2 | Bright |
| 4 | 5.3 | Bright |
| 5 | 5.3 | Bright |
| 6 | 5.3 | Bright |
| 7 | 5.3 | Bright |
| 8 | 5.3 | Bright |
| 9 | 5.4 | Bright |
| 10 | 5.4 | Bright |
| 11 | 5.4 | Bright |
| 12 | 5.4 | Bright |
| 13 | 5.4 | Bright |
| 14 | 5.5 | Bright |
| 15 | 5.5 | Bright |
| 16 | 5.5 | Bright |
| 17 | 5.5 | Bright |
| 18 | 5.5 | Bright |
| 19 | 5.5 | Bright |
| 20 | 5.5 | Bright |
| 21 | 5.5 | Bright |
| 22 | 5.5 | Bright |
| 23 | 5.6 | Bright |
| 24 | 5.6 | Bright |
| 25 | 5.6 | Bright |
| 26 | 5.6 | Bright |
| 27 | 5.6 | Bright |
| 28 | 5.6 | Bright |
| 29 | 5.6 | Bright |
| 30 | 5.6 | Bright |
| 31 | 5.6 | Bright |
Hazard calendar for Lewiston
None of Lewiston's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.
Lewiston sits in the Atlantic hurricane belt; the season peaks August–October.
Is May a good time to visit Lewiston?
Our two travel scores rate May for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
May is a reasonable time to visit Lewiston for sightseeing.
What to pack for Lewiston in May
From May's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In May, Lewiston sees daytime highs around 62°F and nights near 46°F. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.
Sea temperature near Lewiston in May
The nearest coast averages about 48°F in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 33 mi away) is warmest in August at about 63°F and coldest in March near 38°F.
The water stays below 68°F all year — cool enough that most swimmers want a wetsuit.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°F) | 42 | 39 | 38 | 42 | 48 | 55 | 62 | 63 | 60 | 54 | 49 | 45 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Cool | Bracing | Bracing | Bracing |
| Sea temperature (°F) | Comfort | |
|---|---|---|
| Jan | 42 | Bracing |
| Feb | 39 | Bracing |
| Mar | 38 | Bracing |
| Apr | 42 | Bracing |
| May | 48 | Bracing |
| Jun | 55 | Bracing |
| Jul | 62 | Cool |
| Aug | 63 | Cool |
| Sep | 60 | Cool |
| Oct | 54 | Bracing |
| Nov | 49 | Bracing |
| Dec | 45 | Bracing |
UV index in Lewiston in May
Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Lewiston peaks around July 12 at about 7 (very high) — sunscreen and a hat are worth it in the middle of the day. It bottoms out near December 21 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 7 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 1 | 2 | 4 | 5 | 7 | 6 | 7 | 4 | 6 | 3 | 2 | 1 |
| Level | Low | Moderate | Moderate | Moderate | High | High | Very high | Moderate | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 1 | Low |
| Feb | 2 | Moderate |
| Mar | 4 | Moderate |
| Apr | 5 | Moderate |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 7 | Very high |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 3 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Lewiston?
Lewiston sits at 44.1°N, 70.2°W, 217 ft above sea level, in United States. The nearest listed city is Auburn, 0.6 mi away.
Topography around Lewiston
How much the land rises and falls, and what covers it, within 2, 10 and 50 miles of Lewiston.
Within 2 miles, the terrain around Lewiston has only modest variations in elevation — a maximum elevation change of 400 ft around an average of 262 ft above sea level; within 10 miles, significant variations in elevation — a maximum elevation change of 843 ft; within 50 miles, very significant variations in elevation — a maximum elevation change of 4,783 ft.
The land around Lewiston is covered by trees (56%) and artificial surfaces (28%) within 2 miles, trees (76%) within 10 miles, and trees (74%) and water (20%) within 50 miles.
United States travel facts
- Power plugs
- Type A / B
- 120 V · 60 Hz
- Prices
- ≈ 100% of US
- price level, 2025
- GDP per capita
- $90,027
- 2025
- Happiness
- 6.8 / 10
- World Happiness, 2025
- Safe drinking water
- 98%
- of population, 2024
- Homicide rate
- 5.8
- per 100k, 2023
- Road deaths
- 12.7
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Lewiston (44.1003°, -70.2148°, elevation 217 ft), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Tropical-cyclone seasons are the published climatological basin seasons (NOAA National Hurricane Center / regional warning centres). Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).