| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.47 | 0.02 |
| Feb | 2.82 | 2.77 | 0.05 |
| Mar | 4.09 | 4.14 | -0.05 |
| Apr | 3.72 | 3.77 | -0.05 |
| May | 4.12 | 3.97 | 0.15 |
| Jun | 4.46 | 4.44 | 0.02 |
| Jul | 5.00 | 4.92 | 0.08 |
| Aug | 4.53 | 4.55 | -0.02 |
| Sep | 4.24 | 4.11 | 0.13 |
| Oct | 4.32 | 4.17 | 0.15 |
| Nov | 3.23 | 3.26 | -0.03 |
| Dec | 4.21 | 4.16 | 0.05 |
48.23 | 47.73 | 0.50 |