United States vs United States · 1991–2020
Rocktram or
Napa?
Rocktram peaks in May (89), Napa in May (89). Below, every month side by side — the better comfort score of the pair is marked, which is a statement about climate only.
| Month | Rocktram day | Rocktram rain | Napa day | Napa rain | Daylight | Better score |
|---|---|---|---|---|---|---|
| January | 14.7°C | 131 mm | 14.7°C | 131 mm | 9 h 46 / 9 h 46 | level · 31 |
| February | 17.2°C | 135 mm | 17.2°C | 135 mm | 10 h 42 / 10 h 42 | level · 41 |
| March | 19.6°C | 103 mm | 19.6°C | 103 mm | 11 h 50 / 11 h 50 | level · 55 |
| April | 22.2°C | 47 mm | 22.2°C | 47 mm | 13 h 08 / 13 h 08 | level · 77 |
| May | 24.6°C | 27 mm | 24.6°C | 27 mm | 14 h 13 / 14 h 14 | level · 89 |
| June | 27.8°C | 6 mm | 27.8°C | 6 mm | 14 h 49 / 14 h 49 | level · 82 |
| July | 28.3°C | 0 mm | 28.3°C | 0 mm | 14 h 35 / 14 h 35 | level · 82 |
| August | 28.6°C | 1 mm | 28.6°C | 1 mm | 13 h 39 / 13 h 39 | level · 81 |
| September | 28.9°C | 2 mm | 28.9°C | 2 mm | 12 h 23 / 12 h 23 | level · 78 |
| October | 25.5°C | 33 mm | 25.5°C | 33 mm | 11 h 08 / 11 h 08 | level · 85 |
| November | 18.9°C | 76 mm | 18.9°C | 76 mm | 10 h 03 / 10 h 02 | level · 59 |
| December | 14.6°C | 137 mm | 14.6°C | 137 mm | 9 h 31 / 9 h 31 | level · 30 |
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.