Bethesda Climate by Month
Bethesda, Maryland, United States
Hot summers and cold winters, with rain spread through the year.
The climate in Bethesda is one of hot summers and cold winters, with rain spread through the year. July is the warmest month, with highs around 88°F (31°C); January is the coolest at 44°F (7°C), and nights dip to 27°F (-3°C). About 44 in (1117 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 88°F(31°C)
- Average high, July
- Coldest nights
- 27°F(-3°C)
- Average low, January
- Rain per year
- 44 in(1117 mm)
- No clear rainy season
- Humidity
- 64%
- Sunniest: June
Best and worst months in Bethesda
Best for weatherMay is the best time for weather in Bethesda: highs near 76°F (25°C) and about 4.1 in (105 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 44°F (7°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)
Bethesda weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 44°F(7°C) | 27°F(-3°C) | 2.9 in(74 mm) | 58% | 2.0 |
| FebFebruary | 47°F(9°C) | 28°F(-2°C) | 2.7 in(68 mm) | 66% | 2.9 |
| MarMarch | 56°F(13°C) | 35°F(2°C) | 3.7 in(95 mm) | 58% | 3.8 |
| AprApril | 68°F(20°C) | 44°F(7°C) | 3.3 in(85 mm) | 59% | 4.8 |
| MayMayBest | 76°F(25°C) | 54°F(12°C) | 4.1 in(105 mm) | 66% | 5.4 |
| JunJune | 84°F(29°C) | 63°F(17°C) | 4.1 in(104 mm) | 67% | 5.7 |
| JulJuly | 88°F(31°C) | 67°F(20°C) | 4.3 in(109 mm) | 68% | 5.7 |
| AugAugust | 86°F(30°C) | 66°F(19°C) | 4.2 in(106 mm) | 68% | 5.2 |
| SepSeptember | 80°F(27°C) | 59°F(15°C) | 4.4 in(113 mm) | 69% | 4.2 |
| OctOctober | 69°F(21°C) | 47°F(9°C) | 3.5 in(90 mm) | 67% | 3.1 |
| NovNovember | 58°F(14°C) | 37°F(3°C) | 3.1 in(78 mm) | 62% | 2.2 |
| DecDecember | 48°F(9°C) | 30°F(-1°C) | 3.5 in(90 mm) | 62% | 1.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
Places with a similar climate
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