| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.74 | -0.05 |
| Feb | 1.03 | 1.06 | -0.03 |
| Mar | 1.82 | 1.90 | -0.08 |
| Apr | 2.86 | 2.75 | 0.11 |
| May | 4.78 | 4.84 | -0.06 |
| Jun | 4.17 | 4.02 | 0.15 |
| Jul | 4.26 | 4.30 | -0.04 |
| Aug | 3.78 | 3.91 | -0.13 |
| Sep | 2.81 | 2.89 | -0.08 |
| Oct | 2.15 | 2.24 | -0.09 |
| Nov | 1.30 | 1.34 | -0.04 |
| Dec | 1.11 | 1.14 | -0.03 |
30.76 | 31.13 | -0.37 |