United States vs United States · 1991–2020
Sterling or
Ashburn?
Sterling peaks in September (75), Ashburn in September (75). Below, every month side by side — the better comfort score of the pair is marked, which is a statement about climate only.
| Month | Sterling day | Sterling rain | Ashburn day | Ashburn rain | Daylight | Better score |
|---|---|---|---|---|---|---|
| January | 5.8°C | 79 mm | 5.8°C | 79 mm | 9 h 42 / 9 h 42 | level · 5 |
| February | 7.6°C | 66 mm | 7.6°C | 66 mm | 10 h 40 / 10 h 40 | level · 5 |
| March | 12.3°C | 96 mm | 12.3°C | 96 mm | 11 h 50 / 11 h 50 | level · 20 |
| April | 19.1°C | 88 mm | 19.1°C | 88 mm | 13 h 10 / 13 h 10 | level · 53 |
| May | 23.7°C | 123 mm | 23.7°C | 123 mm | 14 h 17 / 14 h 17 | level · 72 |
| June | 28.4°C | 115 mm | 28.4°C | 115 mm | 14 h 53 / 14 h 54 | level · 68 |
| July | 30.9°C | 103 mm | 30.9°C | 103 mm | 14 h 39 / 14 h 39 | level · 56 |
| August | 30.1°C | 94 mm | 30.1°C | 94 mm | 13 h 41 / 13 h 41 | level · 64 |
| September | 26.4°C | 105 mm | 26.4°C | 105 mm | 12 h 24 / 12 h 24 | level · 75 |
| October | 20.1°C | 103 mm | 20.1°C | 103 mm | 11 h 06 / 11 h 06 | level · 58 |
| November | 13.6°C | 82 mm | 13.6°C | 82 mm | 9 h 59 / 9 h 59 | level · 29 |
| December | 8.1°C | 90 mm | 8.1°C | 90 mm | 9 h 26 / 9 h 26 | level · 5 |
Comfort scores compare climate and nothing else — not cost, crowds, flights or what there is to do when you arrive. Two places can also read stations of very different quality: check the distance in the caption above before treating a one-point gap as meaningful.