| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.51 | 2.35 | 0.16 |
| Feb | 2.03 | 1.88 | 0.15 |
| Mar | 2.59 | 2.51 | 0.08 |
| Apr | 3.23 | 3.26 | -0.03 |
| May | 3.70 | 3.94 | -0.24 |
| Jun | 4.23 | 4.24 | -0.01 |
| Jul | 4.38 | 4.85 | -0.47 |
| Aug | 4.10 | 4.22 | -0.12 |
| Sep | 3.49 | 3.80 | -0.31 |
| Oct | 4.01 | 4.08 | -0.07 |
| Nov | 2.94 | 2.95 | -0.01 |
| Dec | 3.07 | 3.13 | -0.06 |
40.28 | 41.21 | -0.93 |