Weather archive in San Ramon
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Weather statistics
| Date / Local time | T | Po | P | Pa | U | DD | Ff | ff10 | ff3 | N | WW | W1 | W2 | Tn | Tx | Cl | Nh | H | Cm | Ch | VV | Td | RRR | tR | E | Tg | E' | sss | |
| 2025 April 22, Tuesday | 11 | 30.7 87 | 743.5 29.27 991.25 991.25 | 755.3 29.74 1006.98 1006.98 | 0.9 0.04 1.2 1.2 | 73 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 50%. 5/10. 4 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 25.4 78 | |||||||||||||
08 | 26.6 80 | 742.6 29.24 990.05 990.05 | 754.4 29.7 1005.78 1005.78 | 89 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | 23.9 75 | 33.6 92 | Stratocumulus other than Stratocumulus cumulogenitus. | 50%. 5/10. 4 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 15.0 9.3 | 24.7 76 | Dry (without cracks, no appreciable amount of dust or loose sand) | ||||||||||||
| April 21, Monday | 17 | 28.2 83 | 740.5 29.15 987.25 987.25 | 752.3 29.62 1002.98 1002.98 | -1.2 -0.05 -1.6 -1.6 | 81 | Calm, no wind | Calm | 90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas | Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | 33.6 92 | Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus. | 70 – 80%. 7/10 – 8/10. 6 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus. | 8.0 5.0 | 24.7 76 | |||||||||
14 | 33.2 92 | 741.7 29.2 988.85 988.85 | 753.4 29.66 1004.45 1004.45 | -2.0 -0.08 -2.67 -2.67 | 62 | Calm, no wind | Calm | 60%. 6/10. 5 oktas | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 60%. 6/10. 5 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 24.9 77 | ||||||||||||||
11 | 30.9 88 | 743.7 29.28 991.52 991.52 | 755.5 29.74 1007.25 1007.25 | 1.1 0.04 1.47 1.47 | 71 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | Cumulus humilis or Cumulus fractus other than of bad weather, or both. | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 20.0 12.4 | 25.0 77 | ||||||||||||||