Postville, Iowa Climate
United States
Pop. 2,131 Elev. 361 m / 1,184 ft
TZ: America/Chicago (UTC-5) ·
Postville experiences a wide climate range, from bitterly cold winters of 10°F (-12°C) in January to mild summers reaching 83°F (28°C) in July. Humidity pushes the summer feels-like temperature to 90°F (32°C), while wind chill can drive winter lows to 1°F (-17°C). Precipitation occurs on roughly 46 days per year (31.8 in / 807 mm total), with snow on 8 days and 35 in (897 mm) of annual accumulation. The city averages 122 sunny days per year and around 30 thunderstorm days. Nearby lake water reaches 76°F (25°C) in summer.
| Temperature | 83°F (28°C) high | 10°F (-12°C) low |
| Feels like | 90°F (32°C) high | 1°F (-17°C) low |
| Rain | 46 days | 31.8 in (807 mm) /yr |
| Snow | 8 days | 35.3 in (897 mm) /yr |
| Sky | 122 sunny | 30 stormy |
| Wind | 2.6 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: May, Sep, Oct
Sky & Air by Month
Cloud cover (%)
47
Jan 58
Feb 53
Mar 65
Apr 50
May 57
Jun 58
Jul 54
Aug 49
Sep 44
Oct 59
Nov 77
Dec Humidity (%)
62
Jan 63
Feb 59
Mar 61
Apr 60
May 69
Jun 77
Jul 76
Aug 71
Sep 67
Oct 69
Nov 80
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 57 mi La Crosse Regional Airport (LSE)
Ski resort 50 mi Mt. La Crosse
National park 19 mi Effigy Mounds National Monument
Mountain peak
(20,733 ft) 348 mi Norris Hill
Hospital 14 mi Veterans Memorial Hospital
Hiking trail 54 mi Wintertide Loop
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 28°F -2°C | 10°F -12°C | 0.0 in 0 mm | 1.6 in40 mm | 12 |
| February | 30°F -1°C | 15°F -9°C | 0.2 in 5 mm | 6.8 in171 mm | 9 |
| March | 55°F 13°C | 32°F 0°C | 3.1 in 79 mm | 8.6 in219 mm | 13 |
| April | 59°F 15°C | 39°F 4°C | 5.7 in 145 mm | 0.4 in10 mm | 5 |
| May | 70°F 21°C | 50°F 10°C | 2.7 in 69 mm | — | 15 |
| June | 81°F 27°C | 63°F 17°C | 4.4 in 112 mm | — | 9 |
| July | 83°F 28°C | 66°F 19°C | 7.0 in 179 mm | — | 10 |
| August | 79°F 26°C | 61°F 16°C | 4.3 in 109 mm | — | 13 |
| September | 76°F 25°C | 56°F 13°C | 1.4 in 35 mm | — | 11 |
| October | 65°F 18°C | 46°F 8°C | 1.6 in 40 mm | — | 13 |
| November | 47°F 8°C | 32°F 0°C | 0.9 in 22 mm | 9.4 in239 mm | 9 |
| December | 29°F -2°C | 14°F -10°C | 0.5 in 13 mm | 8.5 in217 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 12 | 0 |
| February | 9 | 0 |
| March | 13 | 3 |
| April | 5 | 4 |
| May | 15 | 1 |
| June | 9 | 5 |
| July | 10 | 8 |
| August | 13 | 5 |
| September | 11 | 2 |
| October | 13 | 1 |
| November | 9 | 1 |
| December | 3 | 0 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 34°F 1°C |
| April | 44°F 7°C |
| May | 55°F 13°C |
| June | 69°F 21°C |
| July | 76°F 25°C |
| August | 73°F 23°C |
| September | 66°F 19°C |
| October | 57°F 14°C |
| November | 42°F 5°C |
| December | 32°F 0°C |