| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.62 | 1.59 | 0.03 |
| Feb | 1.88 | 1.83 | 0.05 |
| Mar | 2.49 | 2.43 | 0.06 |
| Apr | 3.98 | 3.85 | 0.13 |
| May | 5.17 | 5.09 | 0.08 |
| Jun | 4.70 | 4.75 | -0.05 |
| Jul | 4.14 | 4.17 | -0.03 |
| Aug | 3.91 | 3.83 | 0.08 |
| Sep | 3.45 | 3.72 | -0.27 |
| Oct | 3.28 | 3.18 | 0.10 |
| Nov | 2.50 | 2.34 | 0.16 |
| Dec | 1.90 | 1.83 | 0.07 |
39.02 | 38.61 | 0.41 |