| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.22 | 4.23 | -0.01 |
| Feb | 3.86 | 3.91 | -0.05 |
| Mar | 4.57 | 4.61 | -0.04 |
| Apr | 3.89 | 3.99 | -0.10 |
| May | 3.98 | 3.87 | 0.11 |
| Jun | 4.31 | 4.05 | 0.26 |
| Jul | 4.09 | 4.27 | -0.18 |
| Aug | 4.51 | 4.74 | -0.23 |
| Sep | 3.85 | 3.75 | 0.10 |
| Oct | 3.37 | 3.55 | -0.18 |
| Nov | 3.66 | 3.90 | -0.24 |
| Dec | 4.42 | 4.86 | -0.44 |
48.73 | 49.73 | -1.00 |