| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.64 | 0.04 |
| Feb | 2.90 | 2.78 | 0.12 |
| Mar | 3.99 | 3.99 | 0.00 |
| Apr | 3.44 | 3.57 | -0.13 |
| May | 3.92 | 3.99 | -0.07 |
| Jun | 4.52 | 4.59 | -0.07 |
| Jul | 5.43 | 5.23 | 0.20 |
| Aug | 5.15 | 5.31 | -0.16 |
| Sep | 5.46 | 5.39 | 0.07 |
| Oct | 3.82 | 3.98 | -0.16 |
| Nov | 3.18 | 3.17 | 0.01 |
| Dec | 3.52 | 3.63 | -0.11 |
49.01 | 49.27 | -0.26 |