| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.19 | 4.23 | -0.04 |
| Feb | 3.66 | 3.74 | -0.08 |
| Mar | 4.57 | 4.67 | -0.10 |
| Apr | 4.19 | 4.22 | -0.03 |
| May | 3.85 | 3.85 | 0.00 |
| Jun | 4.24 | 4.06 | 0.18 |
| Jul | 4.14 | 4.05 | 0.09 |
| Aug | 4.46 | 4.43 | 0.03 |
| Sep | 3.87 | 3.82 | 0.05 |
| Oct | 3.56 | 3.75 | -0.19 |
| Nov | 3.72 | 3.85 | -0.13 |
| Dec | 4.38 | 4.63 | -0.25 |
48.83 | 49.30 | -0.47 |