| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.41 | -0.02 |
| Feb | 3.21 | 3.25 | -0.04 |
| Mar | 4.13 | 4.15 | -0.02 |
| Apr | 4.19 | 3.96 | 0.23 |
| May | 3.68 | 3.47 | 0.21 |
| Jun | 4.15 | 4.08 | 0.07 |
| Jul | 3.66 | 3.63 | 0.03 |
| Aug | 3.58 | 3.71 | -0.13 |
| Sep | 3.99 | 3.76 | 0.23 |
| Oct | 4.67 | 4.75 | -0.08 |
| Nov | 3.71 | 3.63 | 0.08 |
| Dec | 4.33 | 4.44 | -0.11 |
46.69 | 46.24 | 0.45 |