| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.66 | 3.72 | -0.06 |
| Feb | 3.17 | 3.21 | -0.04 |
| Mar | 3.94 | 4.10 | -0.16 |
| Apr | 3.65 | 3.64 | 0.01 |
| May | 3.52 | 3.46 | 0.06 |
| Jun | 4.08 | 4.16 | -0.08 |
| Jul | 3.70 | 3.74 | -0.04 |
| Aug | 4.19 | 4.02 | 0.17 |
| Sep | 3.62 | 3.73 | -0.11 |
| Oct | 3.12 | 3.15 | -0.03 |
| Nov | 3.28 | 3.33 | -0.05 |
| Dec | 3.65 | 3.77 | -0.12 |
43.58 | 44.03 | -0.45 |