Climate averages 1991–2020
San Ramon weather
in February.
A mild, wet month: the 10th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
February is a mild month in San Ramon: daytime highs average 15.1°C and nights cool to about 6.1°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 94 mm of rain on roughly 9 days, which makes February a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 46 min on an average February day.
The nearest other city in this atlas is Hayward (15 km away). In February its highs average 15.2°C, about as warm as San Ramon, with 94 mm of rain.
Among the 498 cities listed in the United States, San Ramon ranks joint 203rd of 498 for the warmest February highs and joint 393rd of 498 for the driest February (rainfall, lowest first). The mean February high of those 498 cities is 11.1°C; San Ramon is 4.0°C warmer than that mean.
From February to March, average highs rise by 1.9°C to 17.0°C, and monthly rainfall falls from 94 mm to 70 mm.
The annual picture
February in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
San Ramon climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 13.8°C5.3°C | 5.3°C | 89 | 8.9 | 9.910 h |
| February, selected | 15.1°C6.1°C | 6.1°C | 94 | 9.0 | 10.811 h |
| March | 17.0°C7.3°C | 7.3°C | 70 | 8.4 | 11.912 h |
| April | 19.3°C8.5°C | 8.5°C | 33 | 4.8 | 13.113 h |
| May | 22.5°C10.8°C | 10.8°C | 17 | 3.0 | 14.214 h |
| June | 26.1°C12.9°C | 12.9°C | 3.4 | 0.9 | 14.715 h |
| July | 28.1°C14.4°C | 14.4°C | 0.7 | 0.2 | 14.515 h |
| August | 28.1°C14.7°C | 14.7°C | 1.4 | 0.2 | 13.614 h |
| September | 27.4°C14.1°C | 14.1°C | 1.7 | 0.4 | 12.512 h |
| October | 23.6°C12.0°C | 12.0°C | 21 | 2.9 | 11.311 h |
| November | 17.5°C8.4°C | 8.4°C | 42 | 5.5 | 10.210 h |
| December | 13.6°C5.6°C | 5.6°C | 81 | 8.7 | 9.610 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
February in nearby cities
- Hayward in FebruaryUnited States · 15 kmHigh 15.2°C · Low 6.8°C · 94 mm rain
- Pleasanton in FebruaryUnited States · 16 kmHigh 15.4°C · Low 6.3°C · 86 mm rain
- Union City in FebruaryUnited States · 21 kmHigh 15.5°C · Low 6.9°C · 96 mm rain
- Livermore in FebruaryUnited States · 21 kmHigh 15.2°C · Low 6.1°C · 86 mm rain
- Concord (California), United States in FebruaryUnited States · 23 kmHigh 15.6°C · Low 6.6°C · 96 mm rain
- Fremont in FebruaryUnited States · 26 kmHigh 15.5°C · Low 7.0°C · 96 mm rain
- Oakland in FebruaryUnited States · 26 kmHigh 15.3°C · Low 6.6°C · 97 mm rain
- Berkeley in FebruaryUnited States · 28 kmHigh 15.1°C · Low 6.3°C · 97 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for San Ramon) is explained once on the San Ramon year overview and on the Sources, method and limits page.
Hayward lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.