| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.88 | -0.14 |
| Feb | 0.78 | 0.86 | -0.08 |
| Mar | 1.54 | 1.62 | -0.08 |
| Apr | 2.86 | 3.04 | -0.18 |
| May | 4.15 | 4.37 | -0.22 |
| Jun | 4.45 | 4.54 | -0.09 |
| Jul | 4.25 | 4.19 | 0.06 |
| Aug | 4.22 | 4.19 | 0.03 |
| Sep | 3.22 | 3.25 | -0.03 |
| Oct | 2.84 | 2.73 | 0.11 |
| Nov | 1.58 | 1.65 | -0.07 |
| Dec | 1.05 | 1.26 | -0.21 |
31.68 | 32.58 | -0.90 |