| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.42 | 3.23 | 0.19 |
| Feb | 3.31 | 3.18 | 0.13 |
| Mar | 4.14 | 3.97 | 0.17 |
| Apr | 4.19 | 4.06 | 0.13 |
| May | 3.83 | 3.70 | 0.13 |
| Jun | 4.40 | 4.30 | 0.10 |
| Jul | 4.27 | 3.96 | 0.31 |
| Aug | 3.94 | 4.08 | -0.14 |
| Sep | 3.91 | 3.73 | 0.18 |
| Oct | 4.97 | 4.86 | 0.11 |
| Nov | 4.18 | 3.87 | 0.31 |
| Dec | 4.44 | 4.27 | 0.17 |
49.00 | 47.21 | 1.79 |