Alton, Iowa Climate
United States
Pop. 1,264 Elev. 404 m / 1,326 ft
TZ: America/Chicago (UTC-5) ·
Alton has a dry climate with warm summers reaching 84°F (29°C) in July and cold winters averaging 11°F (-12°C) in February. Humidity pushes the summer feels-like temperature to 92°F (33°C), while wind chill can drive winter lows to 1°F (-17°C). Rain falls on about 38 days per year (28.3 in / 720 mm total), with snow on 5 days and 33 in (832 mm) of annual accumulation. The city averages 141 sunny days per year and around 28 thunderstorm days.
| Temperature | 84°F (29°C) high | 11°F (-12°C) low |
| Feels like | 92°F (33°C) high | 1°F (-17°C) low |
| Rain | 38 days | 28.3 in (720 mm) /yr |
| Snow | 5 days | 32.8 in (832 mm) /yr |
| Sky | 141 sunny | 28 stormy |
| Wind | 2.9 mph (1.3 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Apr, Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
44
Jan 54
Feb 50
Mar 54
Apr 44
May 53
Jun 51
Jul 46
Aug 45
Sep 46
Oct 58
Nov 72
Dec Humidity (%)
61
Jan 64
Feb 59
Mar 54
Apr 52
May 68
Jun 78
Jul 77
Aug 68
Sep 60
Oct 66
Nov 79
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 45 mi Sioux Gateway Airport / Brigadier General Bud Day Field (SUX)
Ski resort 52 mi Great Bear Recreation Park
National park 51 mi Danish Alps State Recreation Area
Mountain peak
(20,733 ft) 297 mi Norris Hill
Hospital 2 mi Orange City Hospital
Hiking trail 41 mi Lake Loop
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 31°F 0°C | 11°F -12°C | 0.0 in 0 mm | 1.4 in36 mm | 15 |
| February | 30°F -1°C | 11°F -12°C | 0.0 in 1 mm | 3.5 in90 mm | 8 |
| March | 57°F 14°C | 31°F -1°C | 2.3 in 59 mm | 10.4 in263 mm | 15 |
| April | 64°F 18°C | 39°F 4°C | 2.7 in 68 mm | 0.2 in6 mm | 13 |
| May | 73°F 23°C | 50°F 10°C | 5.4 in 137 mm | — | 15 |
| June | 83°F 28°C | 62°F 17°C | 5.7 in 146 mm | — | 11 |
| July | 84°F 29°C | 67°F 19°C | 6.0 in 153 mm | — | 11 |
| August | 80°F 26°C | 63°F 17°C | 1.7 in 44 mm | — | 11 |
| September | 79°F 26°C | 57°F 14°C | 1.8 in 45 mm | — | 15 |
| October | 68°F 20°C | 47°F 9°C | 1.8 in 45 mm | — | 12 |
| November | 48°F 9°C | 32°F 0°C | 0.7 in 17 mm | 8.1 in205 mm | 11 |
| December | 34°F 1°C | 15°F -9°C | 0.3 in 6 mm | 9.1 in232 mm | 4 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 15 | 0 |
| February | 8 | 0 |
| March | 15 | 3 |
| April | 13 | 3 |
| May | 15 | 3 |
| June | 11 | 8 |
| July | 11 | 7 |
| August | 11 | 1 |
| September | 15 | 2 |
| October | 12 | 1 |
| November | 11 | 0 |
| December | 4 | 0 |