| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.61 | -0.16 |
| Feb | 2.72 | 2.92 | -0.20 |
| Mar | 3.98 | 4.12 | -0.14 |
| Apr | 3.90 | 4.03 | -0.13 |
| May | 4.04 | 4.04 | 0.00 |
| Jun | 4.58 | 4.72 | -0.14 |
| Jul | 4.59 | 4.61 | -0.02 |
| Aug | 4.46 | 4.56 | -0.10 |
| Sep | 4.37 | 4.33 | 0.04 |
| Oct | 4.34 | 4.44 | -0.10 |
| Nov | 3.51 | 3.60 | -0.09 |
| Dec | 4.27 | 4.39 | -0.12 |
48.21 | 49.37 | -1.16 |