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 | |
| 2026 August 18, Tuesday | 17 | 35.0 95 | 744.2 29.3 992.19 992.19 | 755.9 29.76 1007.78 1007.78 | -1.5 -0.06 -2 -2 | 51 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | Moderate or heavy snow, or rain and snow mixed or hail at time of observation. Thunderstorm during the preceding hour but not at time of observation. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | 35.8 96 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 20–30%. 2/10–3/10. 2 oktas | 600-1000 1968-3281 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 23.4 74 | |||||||||
14 | 34.2 94 | 745.7 29.36 994.19 994.19 | 757.6 29.83 1010.05 1010.05 | -1.5 -0.06 -2 -2 | 53 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 60%. 6/10. 5 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky throughout the appropriate period. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 40%. 4/10. 3 oktas | 600-1000 1968-3281 | Altocumulus translucidus at a single level. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 23.3 74 | |||||||||||
11 | 31.0 88 | 747.2 29.42 996.18 996.18 | 759.1 29.89 1012.05 1012.05 | 1.0 0.04 1.33 1.33 | 62 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 40%. 4/10. 3 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 40%. 4/10. 3 oktas | 600-1000 1968-3281 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 23.0 73 | |||||||||||
08 | 23.6 74 | 746.2 29.38 994.85 994.85 | 758.2 29.85 1010.85 1010.85 | 92 | Calm, no wind | Calm | no clouds no clouds no clouds | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | 21.9 71 | 35.8 96 | 10.0 6.2 | 22.2 72 | Dry (without cracks, no appreciable amount of dust or loose sand) | ||||||||||||||
| August 17, Monday | 17 | 34.4 94 | 743.2 29.26 990.85 990.85 | 754.9 29.72 1006.45 1006.45 | -1.2 -0.05 -1.6 -1.6 | 48 | Wind blowing from the north | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | Visibility reduced by smoke, e.g. veldt or forest fires, industrial smoke or volcanic ashes. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | Cloud covering 1/2 or less of the sky throughout the appropriate period. | 35.8 96 | Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level. | 20–30%. 2/10–3/10. 2 oktas | 300-600 984-1968 | No Altocumulus, Altostratus or Nimbostratus. | No Cirrus, Cirrocumulus or Cirrostratus. | 10.0 6.2 | 22.0 72 | |||||||||