Month

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

140.4

136

195

199

251

301

283

242.1

265

232.8

173.1

144.8

Mean

4.53

4.69

6.29

6.63

8.09

10.03

9.13

7.81

8.83

7.51

5.77

4.67

St. Dev

1.11

0.85

0.68

1.06

0.87

1.04

0.79

1.21

1.18

0.61

0.34

0.93