| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.61 | 3.84 | -0.23 |
| Feb | 2.96 | 3.32 | -0.36 |
| Mar | 4.31 | 4.64 | -0.33 |
| Apr | 4.16 | 4.43 | -0.27 |
| May | 3.51 | 3.47 | 0.04 |
| Jun | 4.03 | 4.14 | -0.11 |
| Jul | 3.56 | 3.69 | -0.13 |
| Aug | 4.01 | 4.13 | -0.12 |
| Sep | 4.12 | 4.23 | -0.11 |
| Oct | 4.57 | 4.63 | -0.06 |
| Nov | 3.80 | 3.99 | -0.19 |
| Dec | 4.41 | 4.74 | -0.33 |
47.05 | 49.25 | -2.20 |