JanFebMarAprMayJunJulAugSepOctNovDec
139.147.538.640.266.686.283.682.579.751.548.4 
235.143.043.916.868.481.188.779.390.054.970.2 
331.827.640.524.560.781.687.579.971.258.473.5 
443.326.954.036.448.678.491.081.477.170.273.0 
539.733.139.644.856.576.686.483.085.670.776.5 
635.425.946.160.768.175.383.985.572.474.163.2 
722.816.557.762.556.189.984.694.355.365.740.0 
814.234.537.545.761.475.081.386.852.573.164.6 
922.433.035.640.647.867.476.979.961.569.327.1 
105.627.743.056.147.373.678.984.470.570.438.9 
1110.437.351.943.150.981.079.487.759.866.238.2 
1214.529.640.634.052.279.183.491.979.361.126.9 
1318.95.829.424.554.286.982.892.966.557.044.4 
142.035.127.330.660.888.477.576.775.752.048.3 
15-7.232.130.842.268.181.782.783.470.345.338.7 
164.823.830.742.064.793.785.685.162.442.036.6 
1726.827.141.958.971.982.895.491.868.934.449.2 
180.913.834.055.672.469.478.996.571.729.060.6 
19-0.77.922.655.476.475.979.098.472.033.045.0 
2012.732.327.158.073.577.673.694.879.734.931.0 
2135.643.140.875.078.576.180.791.281.331.947.1 
2231.547.445.773.582.075.883.694.386.931.437.9 
2324.038.656.162.682.679.890.183.479.725.643.3 
2418.833.059.267.163.588.291.885.880.225.5  
2531.529.338.461.361.784.293.891.476.123.0  
2633.822.948.970.777.386.483.088.871.223.4  
2728.338.957.971.774.394.786.275.861.244.6  
2838.045.459.664.968.592.886.273.959.746.4  
2926.548.860.067.970.889.387.179.971.036.2  
3025.664.975.868.878.288.773.359.739.6  
3135.061.480.188.673.745.2 
Avg: 22.631.344.152.165.681.684.585.471.647.9* 48.8 
Hi: 43.348.864.975.882.694.795.498.490.074.1* 76.5 
Lo: -7.25.822.616.847.367.473.673.352.523.0* 26.9 
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
202022.631.344.152.165.681.684.585.471.647.9* 48.8 
201920.26.831.253.461.576.482.177.369.347.136.426.3
201823.919.034.446.574.981.184.284.167.551.831.731.8
201719.630.639.056.570.279.989.178.372.059.640.227.2
201623.936.9* 51.654.9* 69.979.2* 82.481.670.858.551.518.9
2015* 26.020.5* 49.257.564.3* 76.482.083.5* 78.059.943.6* 27.4
201423.417.8* 34.751.5* 64.571.979.0* 77.070.5* 58.628.827.2
2013* 22.128.930.2* 43.6* 65.774.281.3* 82.774.150.3* 36.215.0
2012* 33.232.756.5* 58.867.078.2* 87.780.574.7* 51.8* 36.822.2
2011* 15.020.3* 27.447.3* 61.3* 72.482.3* 79.170.5* 57.9* 42.233.0
201017.1* 18.139.859.4* 64.774.081.282.165.5* 58.336.516.9
200916.920.629.249.966.6* 72.0* 76.577.6* 76.644.550.2* 15.3
200823.825.441.754.964.773.383.382.469.156.438.416.6
200728.418.447.453.4* 53.478.487.978.972.557.841.626.6
200634.729.040.663.169.879.191.084.368.051.741.635.0
200519.535.742.959.763.377.185.180.675.458.641.927.9
2004  * 50.858.262.672.081.375.772.257.047.131.2
Avg* 23.1* 24.5* 40.6* 54.2* 65.3* 76.3* 83.6* 80.7* 71.7* 54.6* 40.8* 24.9
The;