Deadhorse Airport weather in September: Deadhorse Airport, Alaska: normal highs, lows, rain and records for September
Deadhorse Airport in September has a normal high of 39°F and a normal low of 30°F, a daily mean of 35°F, falling from 46°F on the 1st to 32°F by the 30th. The month brings 0.64 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 4°C and low of −1°C, 16 mm of precipitation in September.
- NOAA stationDeadhorse Airport
- Station IDUSW00027406
- Location70.19°N 148.48°W
- Elevation61 ft (19 m)
- Jan -8° -22°
- Feb -8° -22°
- Mar -7° -21°
- Apr 10° -4°
- May 29° 19°
- Jun 46° 34°
- Jul 55° 40°
- Aug 50° 37°
- Sep 39° 30°
- Oct 24° 13°
- Nov 8° -5°
- Dec -3° -16°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Deadhorse Airport in September?
The normal high is 39°F and the normal low 30°F, for a daily mean of 34.6°F. September is 8.9°F cooler than August and 16.3°F warmer than October. September is the 4th warmest month of the year in Deadhorse Airport and the 3rd wettest. Across the month the normal high falls 14°F, from 46°F on September 1 to 32°F on September 30. From one year to the next September's mean temperature typically moves about 3.2°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 31°F and 38°F.
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 46°F | 35°F | – | – |
| September 8 | 43°F | 33°F | – | – |
| September 15 | 40°F | 31°F | – | – |
| September 22 | 36°F | 28°F | – | – |
| September 30 | 32°F | 24°F | – | – |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 46°F | 35°F | – | – | 15 h 40 min |
| September 2 | 45°F | 35°F | – | – | 15 h 30 min |
| September 3 | 45°F | 34°F | – | – | 15 h 20 min |
| September 4 | 45°F | 34°F | – | – | 15 h 10 min |
| September 5 | 44°F | 34°F | – | – | 15 h |
| September 6 | 44°F | 34°F | – | – | 14 h 50 min |
| September 7 | 43°F | 33°F | – | – | 14 h 50 min |
| September 8 | 43°F | 33°F | – | – | 14 h 40 min |
| September 9 | 43°F | 33°F | – | – | 14 h 30 min |
| September 10 | 42°F | 32°F | – | – | 14 h 20 min |
| September 11 | 42°F | 32°F | – | – | 14 h 10 min |
| September 12 | 41°F | 32°F | – | – | 14 h |
| September 13 | 41°F | 31°F | – | – | 13 h 50 min |
| September 14 | 40°F | 31°F | – | – | 13 h 40 min |
| September 15 | 40°F | 31°F | – | – | 13 h 30 min |
| September 16 | 39°F | 30°F | – | – | 13 h 30 min |
| September 17 | 39°F | 30°F | – | – | 13 h 20 min |
| September 18 | 38°F | 30°F | – | – | 13 h 10 min |
| September 19 | 38°F | 29°F | – | – | 13 h |
| September 20 | 37°F | 29°F | – | – | 12 h 50 min |
| September 21 | 37°F | 28°F | – | – | 12 h 40 min |
| September 22 | 36°F | 28°F | – | – | 12 h 30 min |
| September 23 | 36°F | 27°F | – | – | 12 h 30 min |
| September 24 | 35°F | 27°F | – | – | 12 h 20 min |
| September 25 | 35°F | 26°F | – | – | 12 h 10 min |
| September 26 | 34°F | 26°F | – | – | 12 h |
| September 27 | 34°F | 25°F | – | – | 11 h 50 min |
| September 28 | 33°F | 25°F | – | – | 11 h 40 min |
| September 29 | 33°F | 24°F | – | – | 11 h 30 min |
| September 30 | 32°F | 24°F | – | – | 11 h 20 min |
- Normal high
- 39°FSeptember average
- Normal low
- 30°FSeptember average
- Precipitation
- 0.64 inmonth total
- Nights at 32°F or colder
- 19
- Daylight
- 15 h 40 min to 11 h 20 minSeptember 1 to September 30
- Sunshine
- 54%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00027406; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Deadhorse Airport in September?
In a normal September in Deadhorse Airport, 19 nights fall to freezing and 5 days stay below freezing all day.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00027406.
How humid and windy is Deadhorse Airport in September?
At 3 p.m. the normal temperature is 31°F with 85% relative humidity and a dew point of 27°F; at 6 a.m. it is 27°F with 90% humidity. The wind averages 12.4 mph, most often from the east in the afternoon. A dew point under 50°F feels dry.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 27°F | 25°F | 90% | 11.9 mph | – |
| 9 a.m. | 28°F | 25°F | 89% | 12.2 mph | – |
| noon | 30°F | 26°F | 86% | 13.1 mph | – |
| 3 p.m. | 31°F | 27°F | 85% | 13.2 mph | – |
| 6 p.m. | 29°F | 26°F | 88% | 12.4 mph | – |
| 9 p.m. | 28°F | 25°F | 89% | 12.2 mph | – |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00027406. 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 September in Deadhorse Airport?
The warmest September temperature on this station's record (since 1999) is 70°F, on September 3, 2019; the coldest is −4°F, on September 30, 1999. The wettest September brought 1.15 in (1999).
The September mean against the 1991-2020 normal of 34.6°F: 2021 33.8°F (−0.8), 2022 36.2°F (+1.6), 2023 37.2°F (+2.6), 2024 38.0°F (+3.4), 2026 34.5°F (−0.1). 3 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 33.8°F | −0.8°F | 0.54 in |
| 2022 | 36.2°F | +1.6°F | 0.15 in |
| 2023 | 37.2°F | +2.6°F | 0.39 in |
| 2024 | 38.0°F | +3.4°F | – |
| 2026 | 34.5°F | −0.1°F | 0.68 in |
Source: records: ACIS, station USW00027406; recent months: ACIS, station USW00027406. Records and recent months use complete months only.
How does September in Deadhorse Airport compare across Alaska?
Across the 85 places PlainClimate covers in Alaska, September normal highs run from 37°F in Utqiaġvik to 60°F in Klawock; Deadhorse Airport's is 39°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Deadhorse Airport in August50°F by day, 37°F at night
- Deadhorse Airport in October24°F by day, 13°F at night
- Deadhorse Airport through the yearEvery month, frost dates, records and recent years
- Alaska in SeptemberThe statewide normal and the warmest and coolest places
- Klawock: Alaska's warmest Septembernormal high 60°F