Mount Vernon, Iowa Climate
United States
Pop. 4,486 Elev. 268 m / 879 ft
TZ: America/Chicago (UTC-5) ·
Dry and warm, Mount Vernon sees July highs of 84°F (29°C) and cold January lows of 13°F (-11°C). Humidity pushes the summer feels-like temperature to 93°F (34°C), while wind chill can drive winter lows to 3°F (-16°C). Expect around 46 rainy days annually (32.2 in / 818 mm total), with snow on 4 days and 27 in (681 mm) of annual accumulation. The city averages 127 sunny days per year and around 37 thunderstorm days. Nearby lake water reaches 81°F (27°C) in summer.
| Temperature | 84°F (29°C) high | 13°F (-11°C) low |
| Feels like | 93°F (34°C) high | 3°F (-16°C) low |
| Rain | 46 days | 32.2 in (818 mm) /yr |
| Snow | 4 days | 26.8 in (681 mm) /yr |
| Sky | 127 sunny | 37 stormy |
| Wind | 2.7 mph (1.2 m/s) avg |
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Explore on the MapMonthly Climate Chart
Best months to visit: Aug, Sep, Oct
Sky & Air by Month
Cloud cover (%)
46
Jan 58
Feb 49
Mar 66
Apr 53
May 53
Jun 60
Jul 52
Aug 46
Sep 43
Oct 55
Nov 72
Dec Humidity (%)
61
Jan 65
Feb 58
Mar 59
Apr 59
May 68
Jun 79
Jul 76
Aug 65
Sep 61
Oct 67
Nov 80
Dec Weather Days by Month
Water Temperatures
Cities with Similar Climate
Find similar cities on the map →Nearby Cities
Nearby
Commercial airport 15 mi The Eastern Iowa Airport (CID)
Ski resort 51 mi Sundown Mountain Resort
National park 76 mi Pikes Peak State Park
Hospital 15 mi Jones Regional Medical Center
Hiking trail 9 mi Sycamore Loop
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Monthly Weather Data
↑ See chart| Month | Avg High | Avg Low | Rainfall | Snowfall | Sunny Days |
|---|---|---|---|---|---|
| January | 30°F -1°C | 13°F -11°C | 0.3 in 9 mm | 1.9 in48 mm | 14 |
| February | 32°F 0°C | 16°F -9°C | 0.0 in 1 mm | 5.4 in138 mm | 9 |
| March | 58°F 15°C | 34°F 1°C | 3.3 in 85 mm | 3.9 in100 mm | 14 |
| April | 63°F 17°C | 42°F 6°C | 3.9 in 99 mm | — | 5 |
| May | 72°F 22°C | 51°F 10°C | 3.7 in 93 mm | — | 12 |
| June | 83°F 28°C | 65°F 18°C | 5.4 in 137 mm | — | 11 |
| July | 84°F 29°C | 68°F 20°C | 7.8 in 199 mm | — | 9 |
| August | 80°F 27°C | 62°F 17°C | 2.5 in 65 mm | — | 12 |
| September | 80°F 26°C | 57°F 14°C | 1.3 in 34 mm | — | 14 |
| October | 69°F 20°C | 49°F 9°C | 2.1 in 54 mm | — | 15 |
| November | 50°F 10°C | 33°F 1°C | 0.9 in 23 mm | 8.9 in226 mm | 9 |
| December | 31°F -1°C | 16°F -9°C | 0.8 in 20 mm | 6.7 in169 mm | 3 |
Weather Days by Month
↑ See chart| Month | Sunny Days | Storm Days |
|---|---|---|
| January | 14 | 1 |
| February | 9 | 0 |
| March | 14 | 3 |
| April | 5 | 6 |
| May | 12 | 3 |
| June | 11 | 8 |
| July | 9 | 7 |
| August | 12 | 3 |
| September | 14 | 2 |
| October | 15 | 3 |
| November | 9 | 0 |
| December | 3 | 1 |
Water Temperatures Data
↑ See chart| Month | Lake Avg High |
|---|---|
| January | 32°F 0°C |
| February | 32°F 0°C |
| March | 38°F 4°C |
| April | 50°F 10°C |
| May | 60°F 16°C |
| June | 72°F 22°C |
| July | 81°F 27°C |
| August | 76°F 24°C |
| September | 68°F 20°C |
| October | 61°F 16°C |
| November | 45°F 7°C |
| December | 33°F 1°C |