| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.70 | 0.00 |
| Feb | 0.82 | 0.85 | -0.03 |
| Mar | 1.49 | 1.48 | 0.01 |
| Apr | 2.54 | 2.71 | -0.17 |
| May | 4.71 | 4.74 | -0.03 |
| Jun | 4.07 | 4.25 | -0.18 |
| Jul | 3.87 | 3.65 | 0.22 |
| Aug | 3.33 | 3.30 | 0.03 |
| Sep | 2.56 | 2.77 | -0.21 |
| Oct | 2.16 | 2.13 | 0.03 |
| Nov | 1.26 | 1.28 | -0.02 |
| Dec | 1.00 | 0.99 | 0.01 |
28.51 | 28.85 | -0.34 |