Temperature
Cool by day, cold at night.
Cool days and some sun.

Cool by day, cold at night.
Several rainy days. About 12 wet days, more than in most months.
A mix of sunshine and cloud.
In April, afternoons feel about 47° and nights feel near 35°.
Mostly cloudy skies this month.
Breezy conditions are typical in April. More a comfort consideration than a planning concern.
April late afternoons are around 57°F, easing to about 55°F in early evening.
| 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
Want a side-by-side climate view? Compare Anamosa with Adrian.
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