The Sunspot Observer - Average annual indices of solar activity NGDC - Solar activity in 1984

Statistics of sunspot activity

Solar activity in 1984

Visual indices of solar activity by National Geophysical Data Center

 
Average by
month
I
II
III
IV
V
VI
VII
VIII
IX
X
XI
XII
days
months
N31293130313031313031303130.5130.51
W74.69102.93105.6483.7586.9759.7249.7535.0720.4116.3425.2823.1556.8356.97
Wn36.0140.4333.1720.3327.7615.8117.8714.848.969.828.567.8620.0820.12
Ws38.6862.5072.4763.4259.2143.9031.8720.2311.456.5216.7115.2936.7536.86
n3.764.926.343.503.743.673.662.011.361.091.611.653.113.11
A0.480.670.800.520.540.330.650.430.460.340.260.470.500.50
B0.500.500.960.430.520.800.680.280.340.310.390.460.510.51
C0.850.651.930.860.630.720.830.380.160.160.240.280.640.64
D0.861.501.340.730.500.420.660.540.280.080.360.360.630.64
E0.210.400.050.090.070.020.000.010.000.000.000.000.070.07
F0.010.150.130.350.580.010.000.000.000.000.000.000.100.10
G0.520.480.270.330.530.330.020.020.000.090.290.030.240.24
H0.070.050.070.020.010.210.030.000.000.010.000.000.040.04
I0.270.510.800.190.360.840.780.360.130.110.070.050.370.37
x0.981.181.760.951.061.131.330.700.790.640.660.931.011.01
r0.220.160.530.170.210.160.080.190.090.050.090.150.180.17
s0.881.092.220.840.801.031.410.470.170.140.290.270.800.80
a0.590.591.270.580.610.620.760.580.210.240.320.280.550.56
h0.310.410.280.180.220.500.070.050.000.010.150.010.180.18
k0.781.490.280.790.840.230.000.030.100.010.110.010.380.39
x0.821.231.670.730.911.371.470.780.590.450.340.520.910.91
o2.382.334.232.152.102.182.131.020.640.631.241.131.841.85
i0.441.170.430.600.690.120.060.180.120.000.030.010.320.32
c0.120.180.010.030.030.000.000.030.020.000.000.000.040.03
CV76.73117.9583.4268.1974.7354.8534.8621.5211.867.2924.2312.5748.7549.02
CVn38.8851.4625.6221.7823.0912.3011.307.063.235.715.924.1517.4317.54
CVs37.8566.4957.8046.4251.6442.5523.5614.468.641.5818.318.4231.3131.48