McGrath weather in August: McGrath, Alaska: normal highs, lows, rain and records for August
McGrath in August has a normal high of 64°F and a normal low of 48°F, a daily mean of 56°F, falling from 67°F on the 1st to 61°F by the 31st. Measurable precipitation falls on 16 days in a normal August, 2.91 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 18°C and low of 9°C, 74 mm of precipitation in August.
- NOAA stationMcGrath Airport
- Station IDUSW00026510
- Location62.96°N 155.61°W
- Elevation333 ft (102 m)
- Population284
- Jan 3° -14°
- Feb 15° -6°
- Mar 25° -1°
- Apr 43° 22°
- May 59° 38°
- Jun 69° 49°
- Jul 70° 52°
- Aug 64° 48°
- Sep 54° 38°
- Oct 35° 22°
- Nov 15° 1°
- Dec 6° -10°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is McGrath in August?
The normal high is 64°F and the normal low 48°F, for a daily mean of 55.9°F. August is 4.9°F cooler than July and 9.9°F warmer than September. August is the 3rd warmest month of the year in McGrath and the wettest. Across the month the normal high falls 6°F, from 67°F on August 1 to 61°F on August 31. From one year to the next August's mean temperature typically moves about 2.2°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 54°F and 58°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 53%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| August 1 | 67°F | 51°F | 53% | 28% |
| August 8 | 66°F | 50°F | 53% | 28% |
| August 15 | 64°F | 48°F | 52% | 28% |
| August 22 | 63°F | 47°F | 51% | 27% |
| August 31 | 61°F | 44°F | 50% | 26% |
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 | 67°F | 51°F | 53% | 28% | 17 h 40 min |
| August 2 | 67°F | 51°F | 53% | 28% | 17 h 40 min |
| August 3 | 66°F | 50°F | 53% | 28% | 17 h 30 min |
| August 4 | 66°F | 50°F | 53% | 28% | 17 h 20 min |
| August 5 | 66°F | 50°F | 53% | 28% | 17 h 20 min |
| August 6 | 66°F | 50°F | 53% | 28% | 17 h 10 min |
| August 7 | 66°F | 50°F | 53% | 28% | 17 h 10 min |
| August 8 | 66°F | 50°F | 53% | 28% | 17 h |
| August 9 | 65°F | 50°F | 53% | 28% | 16 h 50 min |
| August 10 | 65°F | 49°F | 53% | 28% | 16 h 50 min |
| August 11 | 65°F | 49°F | 53% | 28% | 16 h 40 min |
| August 12 | 65°F | 49°F | 53% | 28% | 16 h 40 min |
| August 13 | 65°F | 49°F | 53% | 28% | 16 h 30 min |
| August 14 | 65°F | 49°F | 53% | 28% | 16 h 20 min |
| August 15 | 64°F | 48°F | 52% | 28% | 16 h 20 min |
| August 16 | 64°F | 48°F | 52% | 28% | 16 h 10 min |
| August 17 | 64°F | 48°F | 52% | 28% | 16 h 10 min |
| August 18 | 64°F | 48°F | 52% | 27% | 16 h |
| August 19 | 64°F | 47°F | 52% | 27% | 15 h 50 min |
| August 20 | 63°F | 47°F | 52% | 27% | 15 h 50 min |
| August 21 | 63°F | 47°F | 52% | 27% | 15 h 40 min |
| August 22 | 63°F | 47°F | 51% | 27% | 15 h 30 min |
| August 23 | 63°F | 46°F | 51% | 27% | 15 h 30 min |
| August 24 | 63°F | 46°F | 51% | 27% | 15 h 20 min |
| August 25 | 62°F | 46°F | 51% | 27% | 15 h 20 min |
| August 26 | 62°F | 45°F | 51% | 26% | 15 h 10 min |
| August 27 | 62°F | 45°F | 50% | 26% | 15 h |
| August 28 | 62°F | 45°F | 50% | 26% | 15 h |
| August 29 | 61°F | 44°F | 50% | 26% | 14 h 50 min |
| August 30 | 61°F | 44°F | 50% | 26% | 14 h 50 min |
| August 31 | 61°F | 44°F | 50% | 26% | 14 h 40 min |
- Normal high
- 64°FAugust average
- Normal low
- 48°FAugust average
- Precipitation
- 2.91 inmonth total
- Days with precipitation
- 160.01 inch or more
- Nights at 32°F or colder
- 1
- Daylight
- 17 h 40 min to 14 h 40 minAugust 1 to August 31
- Days at 70°F or more
- 6
- Days at 80°F or more
- 1
- Sunshine
- 63%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00026510; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in McGrath in August?
On a given August day the chance of 0.01 inch or more is 52% on average, highest around August 4 (53%). In all, 2.91 in falls on 16 days of a normal August.
In a normal August in McGrath, 1 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00026510.
How humid and windy is McGrath in August?
At 3 p.m. the normal temperature is 58°F with 58% relative humidity and a dew point of 44°F; at 6 a.m. it is 44°F with 91% humidity. The wind averages 4.5 mph, most often from the south-southeast 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 | 42°F | 91% | 3.3 mph | – |
| 9 a.m. | 48°F | 43°F | 85% | 3.6 mph | 12% |
| noon | 55°F | 44°F | 68% | 5.3 mph | – |
| 3 p.m. | 58°F | 44°F | 58% | 6.5 mph | 8% |
| 6 p.m. | 58°F | 44°F | 60% | 6.2 mph | 20% |
| 9 p.m. | 52°F | 45°F | 79% | 3.8 mph | 17% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00026510. 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 McGrath?
The warmest August temperature on McGrath's official record (since 1941) is 89°F, on August 21, 1977; the coldest is 25°F, on August 28, 1984. The wettest August brought 6.26 in (1945).
The August mean against the 1991-2020 normal of 55.9°F: 2023 57.7°F (+1.8), 2024 53.9°F (−2.0), 2026 55.9°F (at normal). 1 of 3 ran warmer than normal.
| August | Mean | Against normal | Precip. |
|---|---|---|---|
| 2023 | 57.7°F | +1.8°F | 4.61 in |
| 2024 | 53.9°F | −2.0°F | 4.11 in |
| 2026 | 55.9°F | at normal | 4.68 in |
Source: records: ACIS, NWS threaded record MCGthr; recent months: ACIS, station USW00026510. Records and recent months use complete months only.
How does August in McGrath 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; McGrath's is 64°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.