| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.07 | 4.22 | -0.15 |
| Feb | 3.22 | 3.28 | -0.06 |
| Mar | 3.58 | 3.76 | -0.18 |
| Apr | 3.66 | 3.78 | -0.12 |
| May | 4.67 | 4.70 | -0.03 |
| Jun | 4.76 | 4.90 | -0.14 |
| Jul | 3.16 | 3.05 | 0.11 |
| Aug | 3.60 | 3.94 | -0.34 |
| Sep | 3.91 | 4.07 | -0.16 |
| Oct | 4.89 | 4.83 | 0.06 |
| Nov | 4.33 | 4.58 | -0.25 |
| Dec | 4.26 | 4.35 | -0.09 |
48.11 | 49.46 | -1.35 |