| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.15 | 1.13 | 0.02 |
| Feb | 1.53 | 1.58 | -0.05 |
| Mar | 2.51 | 2.61 | -0.10 |
| Apr | 3.89 | 3.89 | 0.00 |
| May | 5.33 | 5.48 | -0.15 |
| Jun | 4.92 | 5.04 | -0.12 |
| Jul | 4.26 | 4.21 | 0.05 |
| Aug | 4.46 | 4.28 | 0.18 |
| Sep | 4.05 | 3.94 | 0.11 |
| Oct | 3.20 | 3.11 | 0.09 |
| Nov | 2.12 | 2.06 | 0.06 |
| Dec | 1.71 | 1.68 | 0.03 |
39.13 | 39.01 | 0.12 |