Twenty20 Batting and Fielding in Each Season by Jamie How
| Season | | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| 2005-06 | (New Zealand) | 2 | 2 | 1 | 115 | 74* | 115.00 | 0 | 1 | 1 | |
| 2006-07 | (New Zealand) | 5 | 5 | 0 | 187 | 63 | 37.40 | 0 | 2 | 2 | |
| 2007-08 | (South Africa) | 1 | 1 | 0 | 14 | 14 | 14.00 | 0 | 0 | 0 | |
| 2007-08 | (Australia) | 1 | 1 | 0 | 4 | 4 | 4.00 | 0 | 0 | 0 | |
| 2007-08 | (New Zealand) | 8 | 8 | 1 | 232 | 78* | 33.14 | 0 | 1 | 6 | |
| 2008 | (England) | 1 | 1 | 0 | 1 | 1 | 1.00 | 0 | 0 | 0 | |
| 2008-09 | (New Zealand) | 7 | 7 | 0 | 145 | 62 | 20.71 | 0 | 1 | 1 | |
| 2009-10 | (New Zealand) | 11 | 11 | 0 | 171 | 50 | 15.54 | 0 | 1 | 4 | |
| 2010-11 | (New Zealand) | 5 | 5 | 0 | 174 | 96 | 34.80 | 0 | 1 | 5 | |
| 2010-11 | (South Africa) | 4 | 4 | 2 | 188 | 88* | 94.00 | 0 | 2 | 0 | |
| 2011-12 | (New Zealand) | 8 | 8 | 0 | 206 | 102 | 25.75 | 1 | 0 | 2 | |
| 2012-13 | (New Zealand) | 7 | 7 | 0 | 144 | 31 | 20.57 | 0 | 0 | 4 | |
| 2013-14 | (New Zealand) | 7 | 6 | 0 | 85 | 57 | 14.16 | 0 | 1 | 3 | |
| 2014-15 | (New Zealand) | 7 | 6 | 0 | 106 | 29 | 17.66 | 0 | 0 | 1 | |