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 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
	14	36.6 98	744.8 29.32 992.99 992.99	756.6 29.79 1008.72 1008.72	-2.3 -0.09 -3.07 -3.07	48	Calm, no wind	Calm			50%. 5/10. 4 oktas						Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	50%. 5/10. 4 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	23.9 75
	11	33.6 92	747.1 29.41 996.05 996.05	759.0 29.88 1011.92 1011.92	0.7 0.03 0.93 0.93	59	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						Cumulus humilis or Cumulus fractus other than of bad weather, or both.	20–30%. 2/10–3/10. 2 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	20.0 12.4	24.6 76
	08	27.2 81	746.4 29.39 995.12 995.12	758.4 29.86 1011.12 1011.12		87	Calm, no wind	Calm			no clouds no clouds no clouds				23.5 74	35.4 96						20.0 12.4	24.9 77			Dry (without cracks, no appreciable amount of dust or loose sand)
October 20, Tuesday	17	32.5 91	742.7 29.24 990.19 990.19	754.6 29.71 1006.05 1006.05	-1.9 -0.07 -2.53 -2.53	62	Calm, no wind	Calm			50%. 5/10. 4 oktas					35.4 96	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus.	20–30%. 2/10–3/10. 2 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	24.4 76