| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.77 | 0.74 | 0.03 |
| Feb | 0.84 | 0.84 | 0.00 |
| Mar | 1.45 | 1.48 | -0.03 |
| Apr | 2.68 | 2.78 | -0.10 |
| May | 3.87 | 3.90 | -0.03 |
| Jun | 4.30 | 4.29 | 0.01 |
| Jul | 4.44 | 4.32 | 0.12 |
| Aug | 4.02 | 4.30 | -0.28 |
| Sep | 3.43 | 3.56 | -0.13 |
| Oct | 3.08 | 3.03 | 0.05 |
| Nov | 1.67 | 1.58 | 0.09 |
| Dec | 1.16 | 1.15 | 0.01 |
31.71 | 31.97 | -0.26 |