| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.53 | -0.04 |
| Feb | 2.80 | 2.84 | -0.04 |
| Mar | 4.33 | 4.47 | -0.14 |
| Apr | 3.83 | 3.70 | 0.13 |
| May | 3.72 | 3.82 | -0.10 |
| Jun | 4.65 | 4.45 | 0.20 |
| Jul | 4.91 | 4.58 | 0.33 |
| Aug | 4.44 | 4.53 | -0.09 |
| Sep | 4.83 | 4.81 | 0.02 |
| Oct | 4.19 | 4.21 | -0.02 |
| Nov | 3.40 | 3.26 | 0.14 |
| Dec | 4.04 | 4.30 | -0.26 |
48.63 | 48.50 | 0.13 |