Delta Junction weather in August: Delta Junction, Alaska: normal highs, lows, rain and records for August

Delta Junction in August has a normal high of 65°F and a normal low of 47°F, a daily mean of 56°F, falling from 68°F on the 1st to 60°F by the 31st. Measurable precipitation falls on 13 days in a normal August, 2.02 inches in all. (NOAA 1991-2020 normals)

In metric: a normal high of 18°C and low of 8°C, 51 mm of precipitation in August.

  • NOAA stationBig Delta Airport
  • Station IDUSW00026415
  • Location63.99°N 145.72°W
  • Elevation1,277 ft (389 m)
  • Population985
  1. Jan 6° -8°
  2. Feb 16° -1°
  3. Mar 25° 4°
  4. Apr 44° 24°
  5. May 59° 38°
  6. Jun 68° 49°
  7. Jul 70° 52°
  8. Aug 65° 47°
  9. Sep 53° 36°
  10. Oct 33° 20°
  11. Nov 15° 1°
  12. Dec 9° -5°

Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.

How warm is Delta Junction in August?

The normal high is 65°F and the normal low 47°F, for a daily mean of 55.6°F. August is 5.1°F cooler than July and 10.8°F warmer than September. August is the 3rd warmest month of the year in Delta Junction and the 3rd wettest. Across the month the normal high falls 8°F, from 68°F on August 1 to 60°F on August 31. From one year to the next August's mean temperature typically moves about 2.7°F either way (NOAA's standard deviation), so roughly two Augusts in three average between 53°F and 58°F.

Delta Junction in August, day by day: normal high and low

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 42%).

Normal high and low on five days of August, with the chance of precipitation
DayHighLowChance of 0.01 inChance of 0.10 in
August 168°F50°F42%20%
August 867°F49°F42%19%
August 1565°F47°F41%18%
August 2263°F45°F39%16%
August 3160°F42°F36%14%
Every day of August: normal high, low and chance of precipitation (warmest afternoon August 1, coldest night August 31)
Delta Junction: NOAA 1991-2020 daily normals for each day of August
DayHighLowChance of 0.01 inChance of 0.10 inDaylight
August 168°F50°F42%20%18 h
August 268°F50°F42%20%18 h
August 367°F50°F42%20%17 h 50 min
August 467°F50°F42%20%17 h 40 min
August 567°F50°F42%20%17 h 40 min
August 667°F49°F42%20%17 h 30 min
August 767°F49°F42%20%17 h 20 min
August 867°F49°F42%19%17 h 20 min
August 966°F49°F42%19%17 h 10 min
August 1066°F49°F42%19%17 h
August 1166°F48°F41%19%17 h
August 1266°F48°F41%19%16 h 50 min
August 1366°F48°F41%19%16 h 40 min
August 1465°F48°F41%18%16 h 40 min
August 1565°F47°F41%18%16 h 30 min
August 1665°F47°F41%18%16 h 20 min
August 1765°F47°F40%18%16 h 20 min
August 1864°F47°F40%17%16 h 10 min
August 1964°F46°F40%17%16 h
August 2064°F46°F40%17%16 h
August 2164°F46°F39%17%15 h 50 min
August 2263°F45°F39%16%15 h 50 min
August 2363°F45°F39%16%15 h 40 min
August 2463°F45°F39%16%15 h 30 min
August 2562°F44°F38%16%15 h 30 min
August 2662°F44°F38%15%15 h 20 min
August 2762°F44°F38%15%15 h 10 min
August 2861°F43°F37%15%15 h 10 min
August 2961°F43°F37%14%15 h
August 3061°F43°F36%14%14 h 50 min
August 3160°F42°F36%14%14 h 50 min
Normal high
65°FAugust average
Normal low
47°FAugust average
Precipitation
2.02 inmonth total
Days with precipitation
130.01 inch or more
Nights at 32°F or colder
1
Daylight
18 h to 14 h 50 minAugust 1 to August 31
Days at 70°F or more
8
Days at 80°F or more
2
Sunshine
64%of clear-sky sunlight (NASA)

Source: NOAA NCEI 1991-2020 daily normals, station USW00026415; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.

Does it rain in Delta Junction in August?

On a given August day the chance of 0.01 inch or more is 40% on average, highest around August 1 (42%). In all, 2.02 in falls on 13 days of a normal August.

In a normal August in Delta Junction, 1 nights fall to freezing.

Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00026415.

How humid and windy is Delta Junction in August?

At 3 p.m. the normal temperature is 58°F with 50% relative humidity and a dew point of 39°F; at 6 a.m. it is 44°F with 81% humidity. The wind averages 7.3 mph, most often from the south-southeast in the afternoon. A dew point under 50°F feels dry.

A normal August day at the station, hour by hour (local standard time)
TimeTemperatureDew pointHumidityWindClear or few clouds
6 a.m.44°F38°F81%5.2 mph–
9 a.m.48°F40°F73%7.2 mph10%
noon55°F40°F58%8.9 mph–
3 p.m.58°F39°F50%9.1 mph7%
6 p.m.57°F39°F52%8.6 mph–
9 p.m.51°F40°F66%7.2 mph–

Source: NOAA NCEI 1991-2020 hourly normals, station USW00026415. 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 Delta Junction?

The warmest August temperature on Delta Junction's official record (since 1917) is 90°F, on August 6, 1994; the coldest is 22°F, on August 24, 1948. The wettest August brought 4.81 in (2000).

The August mean against the 1991-2020 normal of 55.6°F: 2021 53.9°F (−1.7), 2022 56.6°F (+1.0), 2023 60.1°F (+4.5), 2024 55.4°F (−0.2), 2026 58.2°F (+2.6). 3 of 5 ran warmer than normal.

Delta Junction: August in recent years against the 1991-2020 normal
AugustMeanAgainst normalPrecip.
202153.9°F−1.7°F2.47 in
202256.6°F+1.0°F0.92 in
202360.1°F+4.5°F0.76 in
202455.4°F−0.2°F1.79 in
202658.2°F+2.6°F2.43 in

Source: records: ACIS, NWS threaded record BIGthr; recent months: ACIS, station USW00026415. Records and recent months use complete months only.

How does August in Delta Junction 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; Delta Junction's is 65°F.

Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.

Other months and places