| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.65 | -0.11 |
| Feb | 2.91 | 2.98 | -0.07 |
| Mar | 4.23 | 4.22 | 0.01 |
| Apr | 3.69 | 3.83 | -0.14 |
| May | 3.85 | 3.83 | 0.02 |
| Jun | 4.24 | 4.38 | -0.14 |
| Jul | 4.41 | 4.48 | -0.07 |
| Aug | 4.33 | 4.43 | -0.10 |
| Sep | 3.99 | 3.98 | 0.01 |
| Oct | 4.11 | 4.09 | 0.02 |
| Nov | 3.33 | 3.32 | 0.01 |
| Dec | 4.21 | 4.41 | -0.20 |
46.84 | 47.60 | -0.76 |