Denali Park, AK weather in September
September in Denali Park: chilly, with frequent rain and some snow. Highs 51°F, lows 31°F, about 13 wet days and about 5.0 in of snow.
- Normal high
- 51°F
- Normal low
- 31°F
- Wet days
- 13
- 1.7 in total
- Snowfall
- 5.0 in
- snow on the ground 3 days
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 57°F | 44°F |
| Normal low | 37°F | 25°F |
| Chance of a wet day | 49% | 39% |
| Sunrise / sunset | 6:40 am / 9:11 pm | 8:01 am / 7:29 pm |
| Daylight | 14.5 h | 11.5 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Alaska Time).
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 30
- Hot dayshigh 90°F or more0 of 30
- Muggy daysdaily mean dew point 65°F or more0 of 30
- Wet daysat least 0.01 in of rain or melted snow13 of 30
- Notable rainat least 0.10 in6 of 30
- Freezing nightslow 32°F or below16 of 30
- Snow on the groundsnow depth 1 in or more3 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain and snow in September
Normal precipitation is 1.7 in; a dry September brings about 1.1 in and a wet one about 2.3 in (25th and 75th percentiles). About 1 day brings half an inch or more. Normal snowfall is 5.0 in, with about 1 day of an inch or more.
How September varies from year to year
- Warmest September, 1991-20201995: average high 58°F
- Coolest September1992: average high 35°F
- Wettest September1992: 4.7 in
- Driest September2011: 0.3 in
- Highest reading73°F (September 21, 1995)
- Lowest reading-6°F (September 23, 1992)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 61°F | 51°F | 34°F |
| Normal low | 41°F | 31°F | 16°F |
| Wet days | 17 | 13 | 10 |
| Comfortable days | 9 | 1 | 0 |
| Daylight | 16.2 h | 13.0 h | 9.8 h |
Highs change by -10°F from August and -17°F into October.
Nearby alternatives in September
- Warmer: Anchorage, AK177 mi · high 56°F · 15 wet days
How Denali Park ranks in September
- Normal high378th warmest of 378 cities; 8th of 8 in Alaska
- Wet days352nd driest of 378
- Comfortable days278th most of 342
What to pack for Denali Park in September
- A warm jacket – lows near 31°F, highs near 51°F
- A rain jacket or umbrella – rain or snow on about 13 days
- Waterproof boots – about 5.0 in of snow in a typical year
- A hat and gloves – about 16 freezing nights
Heating and cooling
September has 726 heating degree days and 0 cooling degree days (base 65°F), 5% of the year's total heating and cooling demand.
Questions
How cold is Denali Park in September?
The normal high is 51°F and the normal low is 31°F. From 1991 to 2020 the coldest September reading was -6°F (September 23, 1992).
Does it rain a lot in Denali Park in September?
About 13 days in September have at least 0.01 in of precipitation, and the normal total is 1.7 in. The wettest September in 1991-2020 was in 1992 (4.7 in); the driest was in 2011 (0.3 in).
Does it snow in Denali Park in September?
Yes. Normal snowfall in September is 5.0 in, and snow covers the ground on about 3 days.
Where the numbers come from
- Temperature, rain, snowfall, snow depth and frost dates: Mckinley Park (USC00505778), 2.0 mi WSW of the city center, 2,070 ft (340 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Nenana Municipal Airport (702600-26435), 57 mi N of the city center, 361 ft (1,369 ft lower than the city). Hourly observations, 1991-2020.
- Not available for this location: humidity and wind by hour and cloud cover (no station close enough or similar enough in elevation).