The Sunspot Observer - Average annual indices of solar activity

Solar activity in 2012

Visual indices of solar activity by author's observations

													Average by
month	I	II	III	IV	V	VI	VII	VIII	IX	X	XI	XII	days	months
N	13	20	10	13	11	16	15	13	10	5	2	12	11.67	11.67
W	90.15	59.50	114.30	122.54	117.18	119.75	129.93	99.23	109.70	78.20	79.00	58.08	99.18	98.13
Wn	69.62	41.90	62.60	49.77	74.45	48.50	31.33	42.69	52.50	32.00	45.50	43.08	49.49	49.50
Ws	20.54	17.60	51.70	72.77	42.73	71.25	98.60	56.54	57.20	46.20	33.50	15.00	49.69	48.64
n	5.38	4.05	6.30	5.46	6.91	6.06	6.00	6.46	6.70	4.60	5.50	3.08	5.50	5.54
A	0.85	0.50	0.50	0.46	0.82	0.63	0.20	0.62	0.50	0.20	1.50	0.00	0.51	0.57
B	1.00	1.10	2.00	0.92	1.09	1.50	1.60	1.31	2.20	0.80	1.00	0.42	1.26	1.24
C	1.08	0.95	1.20	1.00	0.82	1.25	1.93	1.31	1.00	0.80	0.50	0.50	1.10	1.03
D	0.92	0.45	1.70	2.15	1.27	1.50	0.40	1.62	1.30	1.40	0.50	1.50	1.21	1.23
E	0.31	0.05	0.20	0.77	0.18	0.75	0.07	0.15	0.50	0.00	0.50	0.08	0.29	0.30
F	0.15	0.00	0.00	0.00	0.36	0.00	0.80	0.00	0.00	0.00	0.00	0.00	0.13	0.11
G	0.00	0.30	0.30	0.00	0.09	0.00	0.13	0.08	0.30	0.40	0.50	0.25	0.16	0.20
H	0.38	0.20	0.00	0.08	0.64	0.06	0.20	0.15	0.30	0.40	0.50	0.08	0.21	0.25
I	0.69	0.50	0.40	0.08	1.64	0.38	0.67	1.23	0.60	0.60	0.50	0.25	0.62	0.63
x	1.85	1.60	2.50	1.38	1.91	2.13	1.80	1.92	2.70	1.00	2.50	0.42	1.77	1.81
r	0.38	0.60	1.00	0.54	0.36	0.69	0.40	0.54	0.20	0.00	0.00	0.17	0.47	0.41
s	1.54	1.25	0.90	1.15	2.45	1.13	1.80	2.23	1.60	1.60	2.00	1.00	1.50	1.55
a	0.85	0.35	1.60	1.69	1.55	1.75	1.13	1.38	1.80	1.00	0.00	1.17	1.24	1.19
h	0.08	0.05	0.00	0.31	0.18	0.13	0.00	0.08	0.10	0.20	0.00	0.08	0.10	0.10
k	0.69	0.20	0.30	0.38	0.45	0.25	0.86	0.31	0.30	0.80	1.00	0.25	0.42	0.48
x	1.92	1.20	0.90	0.62	3.09	1.06	1.07	2.00	1.40	1.20	2.50	0.33	1.34	1.44
o	2.08	2.50	3.50	2.62	2.09	2.56	3.20	3.38	4.10	2.40	2.00	1.50	2.69	2.66
i	1.31	0.35	1.50	1.92	1.64	2.25	1.27	0.92	1.20	0.80	0.50	1.17	1.29	1.24
c	0.08	0.00	0.40	0.31	0.09	0.19	0.47	0.15	0.00	0.20	0.50	0.08	0.18	0.21
CV	72.00	40.65	73.40	98.23	93.55	80.13	86.93	78.46	78.10	86.60	82.00	59.58	74.91	77.47
CVn	62.31	26.90	43.10	37.31	72.91	23.81	13.07	38.69	37.20	37.40	47.50	39.25	37.65	39.95
CVs	9.69	13.75	30.30	60.92	20.64	56.31	73.86	39.77	40.90	49.20	34.50	20.33	37.26	37.51
gr	4.23	3.25	5.60	5.15	4.82	5.31	5.40	5.23	5.90	3.60	4.00	3.00	4.65	4.62
grfp	15.77	5.90	19.90	34.46	20.91	21.06	31.73	11.62	14.90	16.40	10.50	11.00	18.20	17.85
grf	19.38	12.55	30.70	33.15	25.09	37.31	37.60	21.77	27.00	14.80	12.00	16.17	25.16	23.96
efp	0.62	0.55	0.40	0.00	1.73	0.31	0.53	1.15	0.50	0.80	1.00	0.08	0.59	0.64
ef	0.54	0.25	0.30	0.31	0.36	0.44	0.07	0.08	0.30	0.20	0.50	0.00	0.27	0.28
Cond	2.77	2.65	3.00	2.38	2.45	1.94	2.40	2.46	2.60	3.00	3.50	2.67	2.54	2.65