Bangor weather in August: Bangor, Maine: normal highs, lows, rain and records for August
Bangor in August has a normal high of 79°F and a normal low of 57°F, a daily mean of 68°F, falling from 81°F on the 1st to 77°F by the 31st. Measurable precipitation falls on 10 days in a normal August, 3.06 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 26°C and low of 14°C, 78 mm of precipitation in August.
- NOAA stationBangor International Airport
- Station IDUSW00014606
- Location44.80°N 68.82°W
- Elevation148 ft (45 m)
- Population32,446
- Jan 28° 9°
- Feb 31° 11°
- Mar 40° 21°
- Apr 53° 32°
- May 66° 43°
- Jun 75° 53°
- Jul 80° 59°
- Aug 79° 57°
- Sep 71° 49°
- Oct 58° 38°
- Nov 46° 29°
- Dec 35° 17°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Bangor in August?
The normal high is 79°F and the normal low 57°F, for a daily mean of 68.2°F. August is 1.3°F cooler than July and 8.3°F warmer than September. August is the 2nd warmest month of the year in Bangor and the 11th wettest. Across the month the normal high falls 4°F, from 81°F on August 1 to 77°F on August 31. From one year to the next August's mean temperature typically moves about 1.7°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 67°F and 70°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 34%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 81°F | 59°F | 34% | 21% |
| August 8 | 81°F | 58°F | 33% | 20% |
| August 15 | 80°F | 57°F | 32% | 19% |
| August 22 | 79°F | 56°F | 31% | 18% |
| August 31 | 77°F | 54°F | 30% | 18% |
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| August 1 | 81°F | 59°F | 34% | 21% | 14 h 40 min |
| August 2 | 81°F | 59°F | 33% | 21% | 14 h 40 min |
| August 3 | 81°F | 59°F | 33% | 20% | 14 h 40 min |
| August 4 | 81°F | 59°F | 33% | 20% | 14 h 40 min |
| August 5 | 81°F | 59°F | 33% | 20% | 14 h 30 min |
| August 6 | 81°F | 59°F | 33% | 20% | 14 h 30 min |
| August 7 | 81°F | 59°F | 33% | 20% | 14 h 30 min |
| August 8 | 81°F | 58°F | 33% | 20% | 14 h 30 min |
| August 9 | 80°F | 58°F | 33% | 20% | 14 h 20 min |
| August 10 | 80°F | 58°F | 33% | 20% | 14 h 20 min |
| August 11 | 80°F | 58°F | 32% | 19% | 14 h 20 min |
| August 12 | 80°F | 58°F | 32% | 19% | 14 h 20 min |
| August 13 | 80°F | 58°F | 32% | 19% | 14 h 10 min |
| August 14 | 80°F | 58°F | 32% | 19% | 14 h 10 min |
| August 15 | 80°F | 57°F | 32% | 19% | 14 h 10 min |
| August 16 | 80°F | 57°F | 32% | 19% | 14 h |
| August 17 | 80°F | 57°F | 32% | 19% | 14 h |
| August 18 | 80°F | 57°F | 32% | 19% | 14 h |
| August 19 | 79°F | 57°F | 31% | 19% | 14 h |
| August 20 | 79°F | 57°F | 31% | 19% | 13 h 50 min |
| August 21 | 79°F | 56°F | 31% | 19% | 13 h 50 min |
| August 22 | 79°F | 56°F | 31% | 18% | 13 h 50 min |
| August 23 | 79°F | 56°F | 31% | 18% | 13 h 40 min |
| August 24 | 78°F | 56°F | 31% | 18% | 13 h 40 min |
| August 25 | 78°F | 56°F | 30% | 18% | 13 h 40 min |
| August 26 | 78°F | 55°F | 30% | 18% | 13 h 40 min |
| August 27 | 78°F | 55°F | 30% | 18% | 13 h 30 min |
| August 28 | 78°F | 55°F | 30% | 18% | 13 h 30 min |
| August 29 | 77°F | 55°F | 30% | 18% | 13 h 30 min |
| August 30 | 77°F | 54°F | 30% | 18% | 13 h 20 min |
| August 31 | 77°F | 54°F | 30% | 18% | 13 h 20 min |
- Normal high
- 79°FAugust average
- Normal low
- 57°FAugust average
- Precipitation
- 3.06 inmonth total
- Days with precipitation
- 100.01 inch or more
- Days at 90°F or more
- 2
- Daylight
- 14 h 40 min to 13 h 20 minAugust 1 to August 31
- Days at 70°F or more
- 29
- Days at 80°F or more
- 15
- Sunshine
- 77%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00014606; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Bangor in August?
On a given August day the chance of 0.01 inch or more is 32% on average, highest around August 1 (34%). In all, 3.06 in falls on 10 days of a normal August, 1 of them with an inch or more.
In a normal August in Bangor, 2 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00014606.
What are the records for August in Bangor?
The warmest August temperature on Bangor's official record (since 1925) is 104°F, on August 19, 1935; the coldest is 29°F, on August 25, 1942. The wettest August brought 8.32 in (2011).
The August mean against the 1991-2020 normal of 68.2°F: 2021 70.9°F (+2.7), 2022 71.0°F (+2.8), 2023 67.0°F (−1.2), 2024 68.4°F (+0.2), 2025 67.2°F (−1.0), 2026 70.3°F (+2.1). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 70.9°F | +2.7°F | 1.78 in |
| 2022 | 71.0°F | +2.8°F | 4.32 in |
| 2023 | 67.0°F | −1.2°F | 6.22 in |
| 2024 | 68.4°F | +0.2°F | 4.82 in |
| 2025 | 67.2°F | −1.0°F | 1.70 in |
| 2026 | 70.3°F | +2.1°F | 1.25 in |
Source: records: ACIS, NWS threaded record BGRthr; recent months: ACIS, station USW00014606. Records and recent months use complete months only.
How does August in Bangor compare across Maine?
Across the 42 places PlainClimate covers in Maine, August normal highs run from 74°F in Limestone to 81°F in Fryeburg; Bangor's is 79°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.