Northway weather in September: Northway, Alaska: normal highs, lows, rain and records for September
Northway in September has a normal high of 55°F and a normal low of 32°F, a daily mean of 43°F, falling from 62°F on the 1st to 46°F by the 30th. Measurable precipitation falls on 9 days in a normal September, 1.06 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 0°C, 27 mm of precipitation and 5 cm of snow in September.
- NOAA stationNorthway Airport
- Station IDUSW00026412
- Location62.96°N 141.93°W
- Elevation1,713 ft (522 m)
- Population (census place)202
- Jan -4° -22°
- Feb 8° -16°
- Mar 25° -8°
- Apr 45° 17°
- May 61° 34°
- Jun 70° 45°
- Jul 72° 48°
- Aug 67° 44°
- Sep 55° 32°
- Oct 32° 14°
- Nov 8° -9°
- Dec -2° -19°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Northway in September?
The normal high is 55°F and the normal low 32°F, for a daily mean of 43.2°F. September is 11.8°F cooler than August and 20.0°F warmer than October. September is the 5th warmest month of the year in Northway and the 4th wettest. Across the month the normal high falls 16°F, from 62°F on September 1 to 46°F on September 30. From one year to the next September's mean temperature typically moves about 3.5°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 40°F and 47°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 39%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 62°F | 38°F | 39% | 15% |
| September 8 | 59°F | 35°F | 35% | 14% |
| September 15 | 55°F | 32°F | 31% | 12% |
| September 22 | 51°F | 29°F | 28% | 10% |
| September 30 | 46°F | 25°F | 26% | 8% |
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 | 62°F | 38°F | 39% | 15% | 14 h 30 min |
| September 2 | 61°F | 38°F | 39% | 15% | 14 h 30 min |
| September 3 | 61°F | 37°F | 38% | 15% | 14 h 20 min |
| September 4 | 60°F | 37°F | 37% | 15% | 14 h 10 min |
| September 5 | 60°F | 36°F | 37% | 14% | 14 h 10 min |
| September 6 | 60°F | 36°F | 36% | 14% | 14 h |
| September 7 | 59°F | 36°F | 36% | 14% | 14 h |
| September 8 | 59°F | 35°F | 35% | 14% | 13 h 50 min |
| September 9 | 58°F | 35°F | 35% | 13% | 13 h 40 min |
| September 10 | 58°F | 34°F | 34% | 13% | 13 h 40 min |
| September 11 | 57°F | 34°F | 34% | 13% | 13 h 30 min |
| September 12 | 57°F | 33°F | 33% | 12% | 13 h 30 min |
| September 13 | 56°F | 33°F | 32% | 12% | 13 h 20 min |
| September 14 | 56°F | 33°F | 32% | 12% | 13 h 10 min |
| September 15 | 55°F | 32°F | 31% | 12% | 13 h 10 min |
| September 16 | 55°F | 32°F | 31% | 12% | 13 h |
| September 17 | 54°F | 31°F | 31% | 11% | 13 h |
| September 18 | 54°F | 31°F | 30% | 11% | 12 h 50 min |
| September 19 | 53°F | 31°F | 30% | 11% | 12 h 40 min |
| September 20 | 52°F | 30°F | 29% | 10% | 12 h 40 min |
| September 21 | 52°F | 30°F | 29% | 10% | 12 h 30 min |
| September 22 | 51°F | 29°F | 28% | 10% | 12 h 20 min |
| September 23 | 51°F | 29°F | 28% | 10% | 12 h 20 min |
| September 24 | 50°F | 28°F | 28% | 10% | 12 h 10 min |
| September 25 | 49°F | 28°F | 28% | 9% | 12 h 10 min |
| September 26 | 49°F | 27°F | 27% | 9% | 12 h |
| September 27 | 48°F | 27°F | 27% | 9% | 11 h 50 min |
| September 28 | 47°F | 26°F | 27% | 9% | 11 h 50 min |
| September 29 | 47°F | 26°F | 27% | 8% | 11 h 40 min |
| September 30 | 46°F | 25°F | 26% | 8% | 11 h 40 min |
- Normal high
- 55°FSeptember average
- Normal low
- 32°FSeptember average
- Precipitation
- 1.06 inmonth total
- Days with precipitation
- 90.01 inch or more
- Snowfall
- 1.9 inmonth total
- Nights at 32°F or colder
- 16
- Daylight
- 14 h 30 min to 11 h 40 minSeptember 1 to September 30
- Sunshine
- 67%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00026412; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain or snow in Northway in September?
On a given September day the chance of 0.01 inch or more is 32% on average, highest around September 1 (39%). In all, 1.06 in falls on 9 days of a normal September.
In a normal September in Northway, 16 nights fall to freezing, 1 days stay below freezing all day and snowfall averages 1.9 inches.
Snow falls on 2 days in a normal September, and an inch or more covers the ground on 2 days.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00026412.
How humid and windy is Northway in September?
At 3 p.m. the normal temperature is 41°F with – relative humidity and a dew point of –; at 6 a.m. it is 28°F with 89% humidity. The wind averages 3.5 mph.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 28°F | 25°F | 89% | 2.9 mph | – |
| 9 a.m. | 32°F | 28°F | 84% | 3.5 mph | – |
| noon | 39°F | 29°F | 66% | 4.7 mph | – |
| 3 p.m. | 41°F | – | – | – | – |
| 6 p.m. | 38°F | 28°F | 68% | 3.6 mph | – |
| 9 p.m. | 32°F | 28°F | 83% | 2.9 mph | 27% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00026412. 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 Northway?
The warmest September temperature on this station's record (since 1942) is 80°F, on September 4, 2025; the coldest is −6°F, on September 27, 1983. The wettest September brought 3.52 in (2000); the snowiest, 19.2 inches (1992).
The September mean against the 1991-2020 normal of 43.2°F: 2021 40.6°F (−2.6), 2022 45.1°F (+1.9), 2023 43.9°F (+0.7), 2025 47.5°F (+4.3), 2026 44.2°F (+1.0). 4 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 40.6°F | −2.6°F | 0.81 in |
| 2022 | 45.1°F | +1.9°F | 0.33 in |
| 2023 | 43.9°F | +0.7°F | – |
| 2025 | 47.5°F | +4.3°F | – |
| 2026 | 44.2°F | +1.0°F | – |
Source: records: ACIS, station USW00026412; recent months: ACIS, station USW00026412. Records and recent months use complete months only.
How does September in Northway 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; Northway's is 55°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.