Mason City, Iowa Climate
United States
Pop. 27,366 Elev. 348 m / 1,142 ft
TZ: America/Chicago (UTC-5) ·
Mason City has harsh winters with January lows averaging 10°F (-12°C), and mild summers with July highs of 82°F (28°C). Humidity pushes the summer feels-like temperature to 89°F (32°C), while wind chill can drive winter lows to -1°F (-18°C). Rain falls on about 51 days per year (35.1 in / 892 mm total), with snow on 5 days and 42 in (1078 mm) of annual accumulation. The city averages 126 sunny days per year and around 39 thunderstorm days.
| Temperature | 82°F (28°C) high | 10°F (-12°C) low |
| Feels like | 89°F (32°C) high | -1°F (-18°C) low |
| Rain | 51 days | 35.1 in (892 mm) /yr |
| Snow | 5 days | 42.4 in (1078 mm) /yr |
| Sky | 126 sunny | 39 stormy |
| Wind | 2.9 mph (1.3 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 (%)
48
Jan 56
Feb 49
Mar 65
Apr 47
May 57
Jun 55
Jul 55
Aug 51
Sep 45
Oct 59
Nov 76
Dec Humidity (%)
61
Jan 65
Feb 60
Mar 57
Apr 56
May 71
Jun 80
Jul 80
Aug 73
Sep 66
Oct 69
Nov 82
Dec Weather Days by Month
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 6 mi Mason City Municipal Airport (MCW)
Ski resort 79 mi Mount Kato Ski Area
National park 101 mi Effigy Mounds National Monument
Mountain peak
(20,733 ft) 306 mi Norris Hill
Hospital 1 mi MercyOne North Iowa Medical Center
Hiking trail 2 mi Lime Creek Conservation Area Trail Network
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 29°F -2°C | 10°F -12°C | 0.0 in 0 mm | 1.0 in25 mm | 13 |
| February | 28°F -2°C | 12°F -11°C | 0.1 in 3 mm | 5.7 in144 mm | 11 |
| March | 54°F 12°C | 30°F -1°C | 2.9 in 73 mm | 16.1 in409 mm | 14 |
| April | 61°F 16°C | 39°F 4°C | 5.6 in 142 mm | 0.6 in15 mm | 4 |
| May | 71°F 21°C | 50°F 10°C | 2.9 in 74 mm | — | 16 |
| June | 81°F 27°C | 63°F 17°C | 7.3 in 187 mm | — | 10 |
| July | 82°F 28°C | 66°F 19°C | 6.9 in 175 mm | — | 11 |
| August | 78°F 26°C | 61°F 16°C | 3.9 in 100 mm | — | 8 |
| September | 76°F 25°C | 56°F 13°C | 2.0 in 52 mm | — | 10 |
| October | 64°F 18°C | 46°F 8°C | 1.9 in 50 mm | — | 16 |
| November | 47°F 8°C | 31°F 0°C | 1.1 in 27 mm | 8.8 in225 mm | 10 |
| December | 28°F -2°C | 12°F -11°C | 0.4 in 9 mm | 10.2 in259 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 13 | 0 |
| February | 11 | 0 |
| March | 14 | 4 |
| April | 4 | 6 |
| May | 16 | 1 |
| June | 10 | 8 |
| July | 11 | 7 |
| August | 8 | 6 |
| September | 10 | 4 |
| October | 16 | 2 |
| November | 10 | 1 |
| December | 3 | 0 |