Mount Vernon, New York Climate by Month
Mount Vernon, New York, United States
Hot summers and cold winters, with rain spread through the year.
The climate in Mount Vernon is one of hot summers and cold winters, with rain spread through the year. Expect highs of 86°F (30°C) in July and 39°F (4°C) in January, with the coldest nights (January) near 24°F (-4°C). It gets 46 in (1168 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 24°F(-4°C)
- Average low, January
- Rain per year
- 46 in(1168 mm)
- No clear rainy season
- Humidity
- 65%
- Sunniest: July
Best and worst months in Mount Vernon
Best for weatherThe most comfortable weather comes in May and September, with highs around 74°F (24°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 39°F (4°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in September.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Mount Vernon weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 39°F(4°C) | 24°F(-4°C) | 3.3 in(85 mm) | 66% | 1.7 |
| FebFebruary | 42°F(6°C) | 25°F(-4°C) | 2.9 in(73 mm) | 62% | 2.6 |
| MarMarch | 50°F(10°C) | 32°F(0°C) | 4.1 in(104 mm) | 58% | 3.6 |
| AprApril | 62°F(16°C) | 41°F(5°C) | 3.8 in(97 mm) | 54% | 4.6 |
| MayMayBest | 72°F(22°C) | 51°F(11°C) | 3.6 in(91 mm) | 65% | 5.3 |
| JunJune | 81°F(27°C) | 61°F(16°C) | 4.2 in(106 mm) | 66% | 5.7 |
| JulJuly | 86°F(30°C) | 67°F(19°C) | 4.3 in(110 mm) | 65% | 5.7 |
| AugAugust | 84°F(29°C) | 65°F(18°C) | 4.2 in(106 mm) | 68% | 5.0 |
| SepSeptemberBest | 77°F(25°C) | 58°F(14°C) | 4.0 in(102 mm) | 70% | 4.0 |
| OctOctober | 65°F(19°C) | 47°F(8°C) | 4.1 in(104 mm) | 72% | 2.8 |
| NovNovember | 55°F(13°C) | 38°F(3°C) | 3.5 in(89 mm) | 66% | 1.9 |
| DecDecember | 44°F(7°C) | 30°F(-1°C) | 4.0 in(101 mm) | 67% | 1.5 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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