| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.77 | -0.03 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.52 | 1.51 | 0.01 |
| Apr | 2.75 | 2.84 | -0.09 |
| May | 4.10 | 4.00 | 0.10 |
| Jun | 4.30 | 4.33 | -0.03 |
| Jul | 4.41 | 4.35 | 0.06 |
| Aug | 4.03 | 4.07 | -0.04 |
| Sep | 3.38 | 3.22 | 0.16 |
| Oct | 2.78 | 2.87 | -0.09 |
| Nov | 1.57 | 1.62 | -0.05 |
| Dec | 1.07 | 1.12 | -0.05 |
31.45 | 31.53 | -0.08 |