Vacaville vs San Ramon Climate
91%matchOn climate, San Ramon is a 91% match for Vacaville. Compared with Vacaville, San Ramon has the same winter lows and 9°F (5°C) cooler summer days.
Vacaville gets 23 in (596 mm) of rain a year and San Ramon 19 in (483 mm). August is the warmest month in both, with highs of 92°F (34°C) in Vacaville and 84°F (29°C) in San Ramon.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
VacavilleSan Ramonsolid = high, dashed = low
Rain (in per month)
VacavilleSan Ramon
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Vacaville | San Ramon | Vacaville | San Ramon | Vacaville | San Ramon | |
| Jan | 57°F(14°C) | 57°F(14°C) | 39°F(4°C) | 40°F(5°C) | 5.3 in(134 mm) | 3.9 in(99 mm) |
| Feb | 62°F(17°C) | 61°F(16°C) | 42°F(5°C) | 43°F(6°C) | 5.0 in(126 mm) | 3.7 in(93 mm) |
| Mar | 67°F(20°C) | 65°F(18°C) | 44°F(7°C) | 44°F(7°C) | 3.3 in(83 mm) | 2.6 in(67 mm) |
| Apr | 73°F(23°C) | 69°F(21°C) | 46°F(8°C) | 46°F(8°C) | 1.2 in(31 mm) | 1.3 in(34 mm) |
| May | 80°F(27°C) | 73°F(23°C) | 51°F(11°C) | 50°F(10°C) | 0.7 in(19 mm) | 0.6 in(15 mm) |
| Jun | 88°F(31°C) | 80°F(26°C) | 56°F(14°C) | 54°F(12°C) | 0.2 in(4 mm) | 0.2 in(4 mm) |
| Jul | 92°F(33°C) | 83°F(28°C) | 58°F(14°C) | 56°F(13°C) | 0.0 in(0 mm) | 0.0 in(1 mm) |
| Aug | 92°F(34°C) | 84°F(29°C) | 57°F(14°C) | 56°F(14°C) | 0.0 in(0 mm) | 0.0 in(1 mm) |
| Sep | 89°F(32°C) | 83°F(29°C) | 55°F(13°C) | 55°F(13°C) | 0.1 in(2 mm) | 0.1 in(2 mm) |
| Oct | 80°F(27°C) | 77°F(25°C) | 50°F(10°C) | 51°F(10°C) | 1.0 in(26 mm) | 1.1 in(27 mm) |
| Nov | 67°F(19°C) | 66°F(19°C) | 43°F(6°C) | 44°F(7°C) | 2.3 in(58 mm) | 2.0 in(51 mm) |
| Dec | 57°F(14°C) | 58°F(14°C) | 39°F(4°C) | 40°F(5°C) | 4.4 in(113 mm) | 3.5 in(89 mm) |
1991–2020 averages, by calendar month.