JanFebMarAprMayJunJulAugSepOctNovDec
119.1           
221.2           
319.9           
421.8           
523.1           
633.7           
724.5           
823.4           
922.7           
1022.9           
1129.7           
1228.2           
1316.3           
1419.2           
1520.1           
1623.4           
1723.0           
1830.3           
1927.5           
2021.8           
2124.3           
2224.6           
2323.9           
24            
25            
26            
27            
28            
29           
30           
31       
Avg: * 23.7           
Hi: * 33.7           
Lo: * 16.3           
Note:  *Incomplete dataset.
AvgJanFebMarAprMayJunJulAugSepOctNovDec
2018* 23.7           
201722.122.022.918.113.813.010.812.213.918.922.521.4
201623.323.321.819.114.712.211.713.416.116.518.221.5
201521.423.018.916.713.811.811.211.615.619.520.122.4
201424.824.022.618.915.813.712.814.016.717.819.020.5
201324.625.223.818.116.112.714.214.017.017.818.621.9
Avg* 23.323.522.018.214.812.712.113.015.918.119.721.6