JanFebMarAprMayJunJulAugSepOctNovDec
11.4-8.57.012.722.522.3      
21.5-10.211.913.427.926.8      
30.5-6.613.76.528.225.9      
4-2.3-6.56.69.521.624.7      
5-1.3-3.48.817.518.118.9      
6-2.9-0.512.87.98.323.2      
7-4.2-0.415.07.69.724.8      
8-5.0-0.914.74.613.223.1      
9-3.0-3.615.16.118.1       
10-0.3-2.014.111.521.0       
11-0.21.516.213.121.5       
12-0.62.012.115.512.2       
13-1.51.114.213.912.1       
142.1-1.616.713.715.5       
152.6-3.19.112.211.7       
161.2-6.46.614.416.5       
17-1.0-6.75.713.616.6       
18-5.5-1.612.117.916.9       
19-3.9-1.710.614.619.5       
20-2.10.89.410.322.3       
21-4.33.810.312.219.9       
22-3.04.513.016.121.0       
23-6.75.315.313.726.2       
24-4.03.614.715.922.2       
25-3.92.814.710.022.2       
26-1.88.56.89.622.3       
27-0.112.310.510.618.0       
28-0.714.812.610.118.9       
29-4.49.510.822.1       
30-5.19.816.918.7       
31-7.99.017.7    
Avg: -2.1-0.111.612.118.8* 23.7      
Hi: 2.614.816.717.928.2* 26.8      
Lo: -7.9-10.25.74.68.3* 18.9      
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
2026-2.1-0.111.612.118.8* 23.7      
20253.42.710.515.716.122.024.222.420.011.75.94.7
20242.36.710.214.423.123.825.124.921.613.35.94.8
20234.44.17.312.719.424.223.923.723.313.05.83.8
20223.65.48.511.317.824.323.326.516.314.36.42.0
20211.12.37.010.517.826.526.120.918.312.97.11.3
20205.06.18.213.715.523.322.625.820.113.28.13.1
20191.45.58.714.816.528.222.225.417.913.27.14.7
20182.4-0.33.317.223.424.424.925.420.114.56.73.4
20170.42.48.910.518.921.622.023.017.112.46.43.6
2016-0.74.56.613.421.624.623.021.519.99.14.33.1
20153.13.78.612.318.021.123.827.218.411.37.76.4
2014-1.05.810.415.818.320.927.023.119.813.76.72.5
2013-0.61.71.712.021.723.324.024.016.913.56.94.6
2012          * 4.3-0.3
Avg1.63.68.013.319.1* 23.724.024.119.212.8* 6.43.4