United States vs United States · 1991–2020
Green Rock or
Silvis?
Green Rock peaks in September (85), Silvis in September (85). Below, every month side by side — the better comfort score of the pair is marked, which is a statement about climate only.
| Month | Green Rock day | Green Rock rain | Silvis day | Silvis rain | Daylight | Better score |
|---|---|---|---|---|---|---|
| January | -0.8°C | 36 mm | -0.8°C | 36 mm | 9 h 29 / 9 h 29 | level · 5 |
| February | 1.5°C | 41 mm | 1.5°C | 41 mm | 10 h 32 / 10 h 32 | level · 5 |
| March | 8.5°C | 64 mm | 8.5°C | 64 mm | 11 h 48 / 11 h 48 | level · 11 |
| April | 15.9°C | 100 mm | 15.9°C | 100 mm | 13 h 16 / 13 h 16 | level · 39 |
| May | 22.3°C | 125 mm | 22.3°C | 125 mm | 14 h 29 / 14 h 30 | level · 68 |
| June | 27.6°C | 118 mm | 27.6°C | 118 mm | 15 h 09 / 15 h 10 | level · 67 |
| July | 29.5°C | 106 mm | 29.5°C | 106 mm | 14 h 54 / 14 h 54 | level · 61 |
| August | 28.3°C | 101 mm | 28.3°C | 101 mm | 13 h 50 / 13 h 50 | level · 67 |
| September | 24.8°C | 84 mm | 24.8°C | 84 mm | 12 h 25 / 12 h 25 | level · 85 |
| October | 17.6°C | 69 mm | 17.6°C | 69 mm | 11 h 01 / 11 h 01 | level · 56 |
| November | 9.1°C | 54 mm | 9.1°C | 54 mm | 9 h 47 / 9 h 47 | level · 18 |
| December | 2.1°C | 48 mm | 2.1°C | 48 mm | 9 h 11 / 9 h 11 | 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.