Pomona vs San Jacinto, California Climate
81%matchPomona and San Jacinto are a 81% climate match. Compared with Pomona, San Jacinto has 9°F (5°C) hotter summer days, 4°F (2°C) colder winter nights and less rain in winter.
Pomona gets 14 in (364 mm) of rain a year and San Jacinto 11 in (274 mm). August is the warmest month in both, with highs of 91°F (33°C) in Pomona and 100°F (38°C) in San Jacinto.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
PomonaSan Jacintosolid = high, dashed = low
Rain (in per month)
PomonaSan Jacinto
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Pomona | San Jacinto | Pomona | San Jacinto | Pomona | San Jacinto | |
| Jan | 68°F(20°C) | 68°F(20°C) | 43°F(6°C) | 39°F(4°C) | 3.0 in(76 mm) | 2.0 in(50 mm) |
| Feb | 68°F(20°C) | 69°F(20°C) | 44°F(7°C) | 40°F(5°C) | 3.2 in(82 mm) | 2.2 in(57 mm) |
| Mar | 71°F(22°C) | 72°F(22°C) | 47°F(8°C) | 43°F(6°C) | 2.2 in(55 mm) | 1.4 in(36 mm) |
| Apr | 75°F(24°C) | 78°F(26°C) | 49°F(10°C) | 46°F(8°C) | 1.2 in(31 mm) | 1.0 in(26 mm) |
| May | 78°F(26°C) | 84°F(29°C) | 54°F(12°C) | 51°F(11°C) | 0.2 in(5 mm) | 0.4 in(9 mm) |
| Jun | 83°F(28°C) | 92°F(33°C) | 58°F(14°C) | 56°F(13°C) | 0.0 in(1 mm) | 0.1 in(2 mm) |
| Jul | 89°F(32°C) | 98°F(37°C) | 62°F(17°C) | 60°F(16°C) | 0.0 in(1 mm) | 0.2 in(5 mm) |
| Aug | 91°F(33°C) | 100°F(38°C) | 63°F(17°C) | 62°F(17°C) | 0.0 in(1 mm) | 0.1 in(3 mm) |
| Sep | 89°F(32°C) | 96°F(35°C) | 61°F(16°C) | 59°F(15°C) | 0.2 in(4 mm) | 0.3 in(7 mm) |
| Oct | 82°F(28°C) | 87°F(30°C) | 55°F(13°C) | 51°F(10°C) | 0.5 in(13 mm) | 0.4 in(11 mm) |
| Nov | 74°F(23°C) | 76°F(25°C) | 47°F(8°C) | 43°F(6°C) | 1.3 in(32 mm) | 1.0 in(25 mm) |
| Dec | 67°F(20°C) | 68°F(20°C) | 42°F(6°C) | 37°F(3°C) | 2.5 in(63 mm) | 1.7 in(43 mm) |
1991–2020 averages, by calendar month.