| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.90 | 3.05 | -0.15 |
| Feb | 2.61 | 2.69 | -0.08 |
| Mar | 3.68 | 3.79 | -0.11 |
| Apr | 3.35 | 3.36 | -0.01 |
| May | 4.03 | 4.36 | -0.33 |
| Jun | 4.18 | 4.47 | -0.29 |
| Jul | 4.54 | 4.51 | 0.03 |
| Aug | 3.70 | 3.74 | -0.04 |
| Sep | 4.28 | 4.24 | 0.04 |
| Oct | 3.73 | 3.92 | -0.19 |
| Nov | 3.01 | 3.13 | -0.12 |
| Dec | 3.58 | 3.64 | -0.06 |
43.59 | 44.90 | -1.31 |