Temperature
Cold by day, freezing at night.
Armstrong is usually most comfortable in September and October. Typical daytime highs range from 25–82°F across the year. Rain varies by season.

Cold by day, freezing at night.
Some precipitation is expected this month.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 32° and nights feel near 21°.
Partly cloudy skies this month.
Breezy November days can feel brisker in open spots.
November late afternoons are around 41°F, easing to about 37°F in early evening.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 25 | 10 | 1.1 | 6 | 6.2 | 77 |
| Feb | 30 | 14 | 1.1 | 6 | 7.4 | 76 |
| Mar | 43 | 25 | 2.4 | 8 | 8.3 | 70 |
| Apr | 59 | 38 | 4.0 | 11 | 9.1 | 62 |
| May | 71 | 50 | 5.0 | 13 | 10.0 | 64 |
| Jun | 79 | 61 | 5.4 | 13 | 11.7 | 69 |
| Jul | 82 | 64 | 3.7 | 10 | 12.6 | 74 |
| Aug | 80 | 62 | 3.9 | 10 | 11.3 | 76 |
| Sep | 74 | 54 | 3.2 | 9 | 9.8 | 70 |
| Oct | 60 | 41 | 2.5 | 8 | 7.6 | 66 |
| Nov | 44 | 28 | 1.8 | 6 | 6.5 | 71 |
| Dec | 30 | 16 | 1.4 | 6 | 5.6 | 78 |
Similar climates
Want a side-by-side climate view? Compare Armstrong with New York City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology