| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.44 | 0.03 |
| Feb | 3.10 | 3.13 | -0.03 |
| Mar | 3.76 | 3.85 | -0.09 |
| Apr | 3.79 | 3.99 | -0.20 |
| May | 3.67 | 3.84 | -0.17 |
| Jun | 4.59 | 4.69 | -0.10 |
| Jul | 4.33 | 4.30 | 0.03 |
| Aug | 4.56 | 4.57 | -0.01 |
| Sep | 4.45 | 4.69 | -0.24 |
| Oct | 4.78 | 5.00 | -0.22 |
| Nov | 3.65 | 3.67 | -0.02 |
| Dec | 4.25 | 4.24 | 0.01 |
48.40 | 49.41 | -1.01 |