| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.31 | 0.41 |
| Feb | 2.80 | 2.57 | 0.23 |
| Mar | 4.25 | 3.87 | 0.38 |
| Apr | 4.21 | 3.94 | 0.27 |
| May | 4.30 | 4.26 | 0.04 |
| Jun | 4.52 | 4.96 | -0.44 |
| Jul | 4.72 | 4.90 | -0.18 |
| Aug | 4.30 | 4.78 | -0.48 |
| Sep | 5.11 | 5.01 | 0.10 |
| Oct | 4.40 | 4.65 | -0.25 |
| Nov | 3.58 | 3.59 | -0.01 |
| Dec | 4.00 | 3.84 | 0.16 |
49.91 | 49.68 | 0.23 |