The Sunspot Observer - Average annual indices of solar activity NGDC - Solar activity in 2003

Statistics of sunspot activity

Solar activity in 2003

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
N31283130313031313031303130.4230.42
W137.7180.57110.15108.8386.44114.53124.65109.2378.96107.8498.1471.90102.62102.41
Wn32.6534.7357.4350.7626.0766.3271.0039.5130.7945.1939.0034.1644.0143.97
Ws105.0645.8452.7158.0860.3748.2153.6469.7248.1762.6559.1537.7458.6058.44
n7.894.956.296.095.065.606.555.904.364.694.764.255.555.53
A0.560.370.540.580.650.510.590.510.390.540.450.340.500.50
B0.430.330.590.490.330.240.420.290.340.530.460.530.410.42
C1.911.141.271.260.861.041.120.990.920.800.810.821.081.08
D2.421.582.422.141.321.801.612.131.411.371.801.121.761.76
E0.240.320.290.270.130.420.470.590.070.370.420.010.290.30
F0.050.000.000.010.180.250.320.050.260.370.200.220.160.16
G0.380.150.220.120.090.440.220.280.140.100.130.170.210.20
H0.060.020.240.210.070.020.010.010.010.060.030.010.060.06
I1.841.040.711.011.440.881.801.040.830.560.461.021.051.05
x0.990.701.131.070.970.741.010.810.731.070.910.880.920.92
r0.380.450.400.250.310.290.340.400.230.290.240.200.310.32
s2.752.161.831.711.901.982.752.441.991.261.371.862.012.00
a3.441.501.701.911.361.761.921.821.071.071.070.981.631.63
h0.060.030.320.290.040.100.010.020.020.090.080.030.090.09
k0.280.110.910.860.470.720.530.410.320.911.080.290.580.57
x2.461.431.491.802.161.412.401.561.231.170.941.381.621.62
o4.633.103.973.432.313.082.953.322.612.282.642.523.073.07
i0.720.400.720.700.370.810.900.650.420.490.640.290.590.59
c0.080.030.110.160.240.310.310.370.110.760.540.070.250.26
CV110.8469.74117.91109.9374.79105.96102.87101.7569.0694.81102.9361.3993.6593.50
CVn25.2431.3472.1259.1120.6163.4658.2035.9726.1339.8449.8933.6542.9942.96
CVs85.6038.4045.7950.8254.1842.5144.6765.7742.9254.9753.0427.7450.6750.53