| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.79 | 0.87 | -0.08 |
| Feb | 0.87 | 0.88 | -0.01 |
| Mar | 1.60 | 1.50 | 0.10 |
| Apr | 2.81 | 2.95 | -0.14 |
| May | 4.11 | 4.12 | -0.01 |
| Jun | 4.57 | 4.70 | -0.13 |
| Jul | 4.26 | 4.30 | -0.04 |
| Aug | 4.24 | 4.15 | 0.09 |
| Sep | 3.34 | 3.27 | 0.07 |
| Oct | 2.88 | 2.89 | -0.01 |
| Nov | 1.70 | 1.64 | 0.06 |
| Dec | 1.15 | 1.24 | -0.09 |
32.32 | 32.51 | -0.19 |