Fairbanks weather in August: Fairbanks, Alaska: normal highs, lows, rain and records for August
Fairbanks in August has a normal high of 66°F and a normal low of 48°F, a daily mean of 57°F, falling from 70°F on the 1st to 62°F by the 31st. Measurable precipitation falls on 14 days in a normal August, 2.10 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 19°C and low of 9°C, 53 mm of precipitation in August.
- NOAA stationFairbanks International Airport
- Station IDUSW00026411
- Location64.80°N 147.88°W
- Elevation432 ft (132 m)
- From the center7 miles
- Population31,732
- Jan 1° -17°
- Feb 12° -11°
- Mar 25° -3°
- Apr 46° 22°
- May 62° 39°
- Jun 72° 50°
- Jul 73° 53°
- Aug 66° 48°
- Sep 55° 36°
- Oct 34° 18°
- Nov 12° -4°
- Dec 4° -13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fairbanks in August?
The normal high is 66°F and the normal low 48°F, for a daily mean of 57.0°F. August is 5.9°F cooler than July and 11.2°F warmer than September. August is the 3rd warmest month of the year in Fairbanks and the 2nd wettest. Across the month the normal high falls 8°F, from 70°F on August 1 to 62°F on August 31. From one year to the next August's mean temperature typically moves about 2.6°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 54°F and 60°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 44%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 70°F | 51°F | 44% | 20% |
| August 8 | 69°F | 50°F | 44% | 20% |
| August 15 | 67°F | 48°F | 44% | 20% |
| August 22 | 65°F | 46°F | 42% | 18% |
| August 31 | 62°F | 43°F | 40% | 16% |
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 | 70°F | 51°F | 44% | 20% | 18 h 20 min |
| August 2 | 70°F | 51°F | 44% | 20% | 18 h 10 min |
| August 3 | 70°F | 51°F | 44% | 20% | 18 h 10 min |
| August 4 | 69°F | 51°F | 44% | 20% | 18 h |
| August 5 | 69°F | 51°F | 44% | 20% | 17 h 50 min |
| August 6 | 69°F | 51°F | 44% | 20% | 17 h 40 min |
| August 7 | 69°F | 50°F | 44% | 20% | 17 h 40 min |
| August 8 | 69°F | 50°F | 44% | 20% | 17 h 30 min |
| August 9 | 68°F | 50°F | 44% | 20% | 17 h 20 min |
| August 10 | 68°F | 50°F | 44% | 20% | 17 h 20 min |
| August 11 | 68°F | 49°F | 44% | 20% | 17 h 10 min |
| August 12 | 68°F | 49°F | 44% | 20% | 17 h |
| August 13 | 67°F | 49°F | 44% | 20% | 17 h |
| August 14 | 67°F | 49°F | 44% | 20% | 16 h 50 min |
| August 15 | 67°F | 48°F | 44% | 20% | 16 h 40 min |
| August 16 | 67°F | 48°F | 44% | 20% | 16 h 40 min |
| August 17 | 66°F | 48°F | 43% | 19% | 16 h 30 min |
| August 18 | 66°F | 47°F | 43% | 19% | 16 h 20 min |
| August 19 | 66°F | 47°F | 43% | 19% | 16 h 10 min |
| August 20 | 66°F | 47°F | 43% | 19% | 16 h 10 min |
| August 21 | 65°F | 46°F | 42% | 19% | 16 h |
| August 22 | 65°F | 46°F | 42% | 18% | 15 h 50 min |
| August 23 | 65°F | 46°F | 42% | 18% | 15 h 50 min |
| August 24 | 64°F | 45°F | 42% | 18% | 15 h 40 min |
| August 25 | 64°F | 45°F | 41% | 18% | 15 h 30 min |
| August 26 | 64°F | 45°F | 41% | 17% | 15 h 30 min |
| August 27 | 64°F | 44°F | 41% | 17% | 15 h 20 min |
| August 28 | 63°F | 44°F | 41% | 17% | 15 h 10 min |
| August 29 | 63°F | 43°F | 40% | 17% | 15 h 10 min |
| August 30 | 63°F | 43°F | 40% | 16% | 15 h |
| August 31 | 62°F | 43°F | 40% | 16% | 14 h 50 min |
- Normal high
- 66°FAugust average
- Normal low
- 48°FAugust average
- Precipitation
- 2.10 inmonth total
- Days with precipitation
- 140.01 inch or more
- Daylight
- 18 h 20 min to 14 h 50 minAugust 1 to August 31
- Days at 70°F or more
- 10
- Days at 80°F or more
- 2
- Sunshine
- 67%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00026411; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fairbanks in August?
On a given August day the chance of 0.01 inch or more is 43% on average, highest around August 6 (44%). In all, 2.10 in falls on 14 days of a normal August.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00026411.
How humid and windy is Fairbanks in August?
At 3 p.m. the normal temperature is 60°F with 51% relative humidity and a dew point of 42°F; at 6 a.m. it is 44°F with 88% humidity. The wind averages 4.5 mph, most often from the south in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 44°F | 41°F | 88% | 3.6 mph | – |
| 9 a.m. | 49°F | 43°F | 77% | 4.0 mph | 10% |
| noon | 56°F | 43°F | 61% | 5.0 mph | – |
| 3 p.m. | 60°F | 42°F | 51% | 6.0 mph | 10% |
| 6 p.m. | 59°F | 42°F | 53% | 5.8 mph | – |
| 9 p.m. | 52°F | 44°F | 76% | 3.8 mph | 16% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00026411. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for August in Fairbanks?
The warmest August temperature on Fairbanks's official record (since 1904) is 93°F, on August 5, 1994; the coldest is 21°F, on August 30, 1922. The wettest August brought 6.88 in (1930); the snowiest, 12.3 inches (1910).
The August mean against the 1991-2020 normal of 57.0°F: 2021 56.8°F (−0.2), 2022 59.0°F (+2.0), 2023 61.2°F (+4.2), 2024 56.1°F (−0.9), 2025 57.6°F (+0.6), 2026 59.0°F (+2.0). 4 of 6 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 56.8°F | −0.2°F | 3.67 in |
| 2022 | 59.0°F | +2.0°F | 1.39 in |
| 2023 | 61.2°F | +4.2°F | 1.83 in |
| 2024 | 56.1°F | −0.9°F | 2.83 in |
| 2025 | 57.6°F | +0.6°F | 2.51 in |
| 2026 | 59.0°F | +2.0°F | 2.00 in |
Source: records: ACIS, NWS threaded record FAIthr; recent months: ACIS, station USW00026411. Records and recent months use complete months only.
How does August in Fairbanks compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, August normal highs run from 45°F in Utqiaġvik to 68°F in Two Rivers; Fairbanks's is 66°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.