| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.69 | 3.45 | 0.24 |
| Feb | 3.19 | 3.15 | 0.04 |
| Mar | 4.17 | 4.15 | 0.02 |
| Apr | 4.07 | 4.12 | -0.05 |
| May | 3.69 | 3.73 | -0.04 |
| Jun | 4.60 | 4.64 | -0.04 |
| Jul | 4.18 | 4.12 | 0.06 |
| Aug | 4.60 | 4.57 | 0.03 |
| Sep | 4.33 | 4.38 | -0.05 |
| Oct | 4.97 | 4.79 | 0.18 |
| Nov | 3.85 | 3.82 | 0.03 |
| Dec | 4.46 | 4.44 | 0.02 |
49.80 | 49.36 | 0.44 |