Temperature
Pleasant by day, brisk at night.
76°Ftypical September high
Typical range
September climate
September in Anamosa
United States · North America
Warm days with cooler nights and plenty of sun.
One of the best months here
Late
Daytime high
76°F
Lows around 56°F
Rain
Several rainy days
Sun
10 h/day
Air feel
Comfortable
When to visit
Month-by-month fit
Best
Precipitation
Several rainy days. About 8 wet days, fewer than in most months.
27%wet-day frequency
Precip amountWet-day chanceSnowfall
Sunshine
Plenty of sun this month.
9.8 hSeptember sunshine
Heat & humidity by month
LowSeptember Heat feel
Easy airWarm airHot airHumid airVery humid air
Hourly temperature pattern
In September, afternoons feel about 70° and nights feel near 55°.
FrigidFreezingVery coldColdCoolComfortableWarmNight hours
Clear sky
Partly cloudy skies this month.
57%September Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in September.
8 mphSeptember Light breeze
More detailIncludes daypart comfort
Typical September day
September late afternoons are around 74°F, easing to about 69°F in early evening.
Avg temp Typical range
Morning64°F
Rain10%
Cloud44%
Humid airLow
Sun intensityLow
Best windowMidday73°F
Rain12%
Cloud48%
Humid airLow
Sun intensityStrong
Late afternoon74°F
Rain12%
Cloud49%
Humid airLow
Sun intensityModerate
Early evening69°F
Rain9%
Cloud43%
Humid airLow
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 29 | 14 | 1.6 | 7 | 5.9 | 77 |
| Feb | 33 | 18 | 1.8 | 6 | 7.3 | 74 |
| Mar | 48 | 30 | 2.7 | 9 | 8.5 | 67 |
| Apr | 61 | 40 | 4.3 | 12 | 8.9 | 63 |
| May | 72 | 52 | 4.8 | 13 | 10.3 | 67 |
| Jun | 80 | 62 | 5.1 | 12 | 11.5 | 70 |
| Jul | 83 | 65 | 3.5 | 10 | 12.2 | 74 |
| Aug | 81 | 63 | 3.5 | 10 | 11.3 | 75 |
| Sep | 76 | 56 | 3.4 | 8 | 9.8 | 71 |
| Oct | 63 | 44 | 3.0 | 9 | 7.7 | 68 |
| Nov | 48 | 32 | 2.1 | 7 | 6.4 | 70 |
| Dec | 34 | 21 | 2.0 | 8 | 5.5 | 77 |
Similar climates
Similar
Similar travel styleAdrianUnited StatesSimilar travel styleAkronUnited StatesSimilar travel styleAlbanyUnited StatesSimilar travel styleAlbert LeaUnited States
Want a side-by-side climate view? Compare Anamosa with Adrian.
Climate data notePlanning guidance, not a forecast
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: Jul 31, 2026
Data & methodology