Weather archive in San Ramon

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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 October 22, Thursday	17	33.6 92	744.1 29.3 992.05 992.05	755.8 29.76 1007.65 1007.65	-2.0 -0.08 -2.67 -2.67	59	Wind blowing from the north	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			50%. 5/10. 4 oktas					34.1 93	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.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	20.0 12.4	24.5 76
	14	33.0 91	746.1 29.37 994.72 994.72	757.9 29.84 1010.45 1010.45	-1.9 -0.07 -2.53 -2.53	63	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			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	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	25.0 77
	11	29.5 85	748.0 29.45 997.25 997.25	759.9 29.92 1013.12 1013.12	0.7 0.03 0.93 0.93	76	Wind blowing from the north	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 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	24.8 77
	08	24.0 75	747.3 29.42 996.32 996.32	759.4 29.9 1012.45 1012.45		90	Calm, no wind	Calm			100%. 10/10. 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.	22.5 73	37.5 100	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	40%. 4/10. 3 oktas	300-600 984-1968	Altostratus opacus or Nimbostratus.		8.0 5.0	22.2 72	14.0 0.55	24	Surface of ground moist.
October 21, Wednesday	17	36.1 97	742.4 29.23 989.79 989.79	754.1 29.69 1005.38 1005.38	-2.4 -0.09 -3.2 -3.2	48	Calm, no wind	Calm			50%. 5/10. 4 oktas					37.5 100	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	40%. 4/10. 3 oktas	600-1000 1968-3281	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.	20.0 12.4	23.6 74