Baltimore Climate by Month
Baltimore, Maryland, United States
Hot summers and cold winters, with rain spread through the year.
Hot summers and cold winters, with rain spread through the year: that's Baltimore's climate in short. Expect highs of 89°F (32°C) in July and 43°F (6°C) in January, with the coldest nights (January) near 28°F (-2°C). About 45 in (1145 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 89°F(32°C)
- Average high, July
- Coldest nights
- 28°F(-2°C)
- Average low, January
- Rain per year
- 45 in(1145 mm)
- No clear rainy season
- Humidity
- 62%
- Sunniest: June
Best and worst months in Baltimore
Best for weatherMay is the best time for weather in Baltimore: highs near 77°F (25°C) and about 4.0 in (101 mm) of rain a month.
Least pleasantDecember and January are the least pleasant; January is the coldest, with highs of only 43°F (6°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 May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Baltimore weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 43°F(6°C) | 28°F(-2°C) | 3.1 in(79 mm) | 58% | 1.9 |
| FebFebruary | 46°F(8°C) | 29°F(-2°C) | 2.9 in(73 mm) | 66% | 2.8 |
| MarMarch | 55°F(13°C) | 36°F(2°C) | 4.0 in(102 mm) | 58% | 3.7 |
| AprApril | 67°F(20°C) | 46°F(8°C) | 3.3 in(85 mm) | 57% | 4.7 |
| MayMayBest | 77°F(25°C) | 56°F(14°C) | 4.0 in(101 mm) | 63% | 5.3 |
| JunJune | 85°F(30°C) | 66°F(19°C) | 4.0 in(101 mm) | 63% | 5.6 |
| JulJuly | 89°F(32°C) | 70°F(21°C) | 4.1 in(104 mm) | 63% | 5.5 |
| AugAugust | 87°F(31°C) | 69°F(20°C) | 4.4 in(112 mm) | 64% | 5.0 |
| SepSeptember | 81°F(27°C) | 61°F(16°C) | 4.6 in(118 mm) | 66% | 4.1 |
| OctOctober | 70°F(21°C) | 49°F(10°C) | 3.5 in(88 mm) | 63% | 3.0 |
| NovNovember | 57°F(14°C) | 39°F(4°C) | 3.1 in(80 mm) | 61% | 2.1 |
| DecDecember | 47°F(9°C) | 32°F(0°C) | 4.0 in(102 mm) | 61% | 1.7 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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