| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.57 | -0.18 |
| Feb | 2.86 | 2.95 | -0.09 |
| Mar | 4.06 | 4.18 | -0.12 |
| Apr | 3.77 | 3.88 | -0.11 |
| May | 3.98 | 3.99 | -0.01 |
| Jun | 4.31 | 4.55 | -0.24 |
| Jul | 4.74 | 4.85 | -0.11 |
| Aug | 4.32 | 4.40 | -0.08 |
| Sep | 4.05 | 4.26 | -0.21 |
| Oct | 4.09 | 4.24 | -0.15 |
| Nov | 3.30 | 3.40 | -0.10 |
| Dec | 4.23 | 4.33 | -0.10 |
47.10 | 48.60 | -1.50 |