| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.68 | 0.02 |
| Feb | 1.01 | 0.97 | 0.04 |
| Mar | 1.78 | 1.84 | -0.06 |
| Apr | 2.88 | 2.85 | 0.03 |
| May | 4.60 | 4.54 | 0.06 |
| Jun | 4.26 | 4.37 | -0.11 |
| Jul | 4.26 | 4.54 | -0.28 |
| Aug | 3.71 | 3.74 | -0.03 |
| Sep | 2.94 | 2.99 | -0.05 |
| Oct | 2.27 | 2.20 | 0.07 |
| Nov | 1.36 | 1.40 | -0.04 |
| Dec | 1.09 | 1.05 | 0.04 |
30.86 | 31.17 | -0.31 |