Palmer weather in September: Palmer, Alaska: normal highs, lows, rain and records for September
Palmer in September has a normal high of 56°F and a normal low of 41°F, a daily mean of 48°F, falling from 61°F on the 1st to 51°F by the 30th. Measurable precipitation falls on 13 days in a normal September, 2.08 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 13°C and low of 5°C, 53 mm of precipitation in September.
- NOAA stationPalmer Municipal Airport
- Station IDUSW00025331
- Location61.60°N 149.09°W
- Elevation230 ft (70 m)
- Population6,626
- Jan 22° 8°
- Feb 28° 13°
- Mar 34° 17°
- Apr 48° 30°
- May 59° 39°
- Jun 66° 47°
- Jul 68° 51°
- Aug 65° 48°
- Sep 56° 41°
- Oct 42° 29°
- Nov 29° 16°
- Dec 25° 11°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Palmer in September?
The normal high is 56°F and the normal low 41°F, for a daily mean of 48.3°F. September is 8.1°F cooler than August and 12.9°F warmer than October. September is the 5th warmest month of the year in Palmer and the 2nd wettest. Across the month the normal high falls 10°F, from 61°F on September 1 to 51°F on September 30. From one year to the next September's mean temperature typically moves about 2.4°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 46°F and 51°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 46%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 61°F | 45°F | 46% | 21% |
| September 8 | 58°F | 43°F | 45% | 20% |
| September 15 | 56°F | 41°F | 44% | 19% |
| September 22 | 54°F | 39°F | 42% | 18% |
| September 30 | 51°F | 37°F | 38% | 16% |
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 | 61°F | 45°F | 46% | 21% | 14 h 20 min |
| September 2 | 60°F | 44°F | 46% | 21% | 14 h 20 min |
| September 3 | 60°F | 44°F | 46% | 21% | 14 h 10 min |
| September 4 | 60°F | 44°F | 46% | 21% | 14 h 10 min |
| September 5 | 59°F | 44°F | 46% | 21% | 14 h |
| September 6 | 59°F | 43°F | 46% | 21% | 14 h |
| September 7 | 59°F | 43°F | 45% | 20% | 13 h 50 min |
| September 8 | 58°F | 43°F | 45% | 20% | 13 h 40 min |
| September 9 | 58°F | 43°F | 45% | 20% | 13 h 40 min |
| September 10 | 58°F | 42°F | 45% | 20% | 13 h 30 min |
| September 11 | 57°F | 42°F | 45% | 20% | 13 h 30 min |
| September 12 | 57°F | 42°F | 44% | 20% | 13 h 20 min |
| September 13 | 57°F | 42°F | 44% | 19% | 13 h 20 min |
| September 14 | 56°F | 41°F | 44% | 19% | 13 h 10 min |
| September 15 | 56°F | 41°F | 44% | 19% | 13 h |
| September 16 | 56°F | 41°F | 43% | 19% | 13 h |
| September 17 | 55°F | 41°F | 43% | 19% | 12 h 50 min |
| September 18 | 55°F | 40°F | 43% | 19% | 12 h 50 min |
| September 19 | 55°F | 40°F | 43% | 19% | 12 h 40 min |
| September 20 | 54°F | 40°F | 42% | 19% | 12 h 30 min |
| September 21 | 54°F | 39°F | 42% | 19% | 12 h 30 min |
| September 22 | 54°F | 39°F | 42% | 18% | 12 h 20 min |
| September 23 | 53°F | 39°F | 41% | 18% | 12 h 20 min |
| September 24 | 53°F | 39°F | 41% | 18% | 12 h 10 min |
| September 25 | 53°F | 38°F | 41% | 18% | 12 h 10 min |
| September 26 | 52°F | 38°F | 40% | 18% | 12 h |
| September 27 | 52°F | 38°F | 40% | 17% | 11 h 50 min |
| September 28 | 51°F | 37°F | 39% | 17% | 11 h 50 min |
| September 29 | 51°F | 37°F | 39% | 17% | 11 h 40 min |
| September 30 | 51°F | 37°F | 38% | 16% | 11 h 40 min |
- Normal high
- 56°FSeptember average
- Normal low
- 41°FSeptember average
- Precipitation
- 2.08 inmonth total
- Days with precipitation
- 130.01 inch or more
- Nights at 32°F or colder
- 3
- Daylight
- 14 h 20 min to 11 h 40 minSeptember 1 to September 30
- Sunshine
- 61%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00025331; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Palmer in September?
On a given September day the chance of 0.01 inch or more is 43% on average, highest around September 1 (46%). In all, 2.08 in falls on 13 days of a normal September.
In a normal September in Palmer, 3 nights fall to freezing.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00025331.
What are the records for September in Palmer?
The warmest September temperature on this station's record (since 1997) is 70°F, on September 2, 2016; the coldest is 21°F, on September 24, 2015. The wettest September brought 5.24 in (2004).
The September mean against the 1991-2020 normal of 48.3°F: 2021 46.1°F (−2.1), 2022 50.4°F (+2.1), 2023 49.0°F (+0.7), 2024 49.1°F (+0.8), 2026 49.8°F (+1.5). 4 of 5 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 46.1°F | −2.1°F | 2.40 in |
| 2022 | 50.4°F | +2.1°F | 3.33 in |
| 2023 | 49.0°F | +0.7°F | 2.75 in |
| 2024 | 49.1°F | +0.8°F | 2.15 in |
| 2026 | 49.8°F | +1.5°F | 2.76 in |
Source: records: ACIS, station USW00025331; recent months: ACIS, station USW00025331. Records and recent months use complete months only.
How does September in Palmer 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; Palmer's is 56°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.