Arlington, Virginia Climate by Month
Arlington, Virginia, 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 Arlington's climate in short. July is the warmest month, with highs around 89°F (32°C); January is the coolest at 44°F (7°C), and nights dip to 27°F (-3°C). About 43 in (1096 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 89°F(32°C)
- Average high, July
- Coldest nights
- 27°F(-3°C)
- Average low, January
- Rain per year
- 43 in(1096 mm)
- No clear rainy season
- Humidity
- 63%
- Sunniest: June
Best and worst months in Arlington
Best for weatherThe most comfortable weather comes in May, with highs around 77°F (25°C) and about 4.0 in (101 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)
Arlington weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 44°F(7°C) | 27°F(-3°C) | 2.9 in(74 mm) | 56% | 2.0 |
| FebFebruary | 48°F(9°C) | 29°F(-2°C) | 2.6 in(66 mm) | 64% | 2.9 |
| MarMarch | 57°F(14°C) | 35°F(2°C) | 3.7 in(93 mm) | 57% | 3.8 |
| AprApril | 68°F(20°C) | 45°F(7°C) | 3.3 in(84 mm) | 58% | 4.8 |
| MayMayBest | 77°F(25°C) | 55°F(13°C) | 4.0 in(101 mm) | 65% | 5.4 |
| JunJune | 85°F(29°C) | 64°F(18°C) | 4.0 in(102 mm) | 66% | 5.7 |
| JulJuly | 89°F(32°C) | 68°F(20°C) | 4.2 in(106 mm) | 66% | 5.7 |
| AugAugust | 87°F(30°C) | 67°F(19°C) | 4.2 in(106 mm) | 67% | 5.2 |
| SepSeptember | 80°F(27°C) | 60°F(15°C) | 4.4 in(111 mm) | 68% | 4.2 |
| OctOctober | 69°F(21°C) | 48°F(9°C) | 3.5 in(89 mm) | 65% | 3.1 |
| NovNovember | 58°F(15°C) | 38°F(3°C) | 3.0 in(76 mm) | 61% | 2.2 |
| DecDecember | 48°F(9°C) | 31°F(-1°C) | 3.5 in(88 mm) | 61% | 1.8 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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