| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.60 | 2.54 | 0.06 |
| Feb | 2.15 | 2.22 | -0.07 |
| Mar | 2.65 | 2.54 | 0.11 |
| Apr | 3.78 | 3.65 | 0.13 |
| May | 4.32 | 4.16 | 0.16 |
| Jun | 4.64 | 4.48 | 0.16 |
| Jul | 4.36 | 4.41 | -0.05 |
| Aug | 4.16 | 4.18 | -0.02 |
| Sep | 3.36 | 3.24 | 0.12 |
| Oct | 3.32 | 3.17 | 0.15 |
| Nov | 2.91 | 2.87 | 0.04 |
| Dec | 2.45 | 2.41 | 0.04 |
40.70 | 39.87 | 0.83 |