| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.80 | 0.80 | 0.00 |
| Feb | 0.84 | 0.88 | -0.04 |
| Mar | 1.43 | 1.42 | 0.01 |
| Apr | 2.58 | 2.52 | 0.06 |
| May | 3.44 | 3.41 | 0.03 |
| Jun | 4.53 | 4.71 | -0.18 |
| Jul | 4.45 | 4.57 | -0.12 |
| Aug | 3.74 | 3.82 | -0.08 |
| Sep | 3.19 | 3.24 | -0.05 |
| Oct | 3.03 | 3.08 | -0.05 |
| Nov | 1.61 | 1.58 | 0.03 |
| Dec | 1.17 | 1.22 | -0.05 |
30.81 | 31.25 | -0.44 |