| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.64 | 0.02 |
| Feb | 0.67 | 0.69 | -0.02 |
| Mar | 1.28 | 1.28 | 0.00 |
| Apr | 2.24 | 2.29 | -0.05 |
| May | 3.39 | 3.43 | -0.04 |
| Jun | 4.24 | 4.23 | 0.01 |
| Jul | 4.33 | 4.32 | 0.01 |
| Aug | 3.47 | 3.34 | 0.13 |
| Sep | 2.95 | 2.85 | 0.10 |
| Oct | 2.65 | 2.70 | -0.05 |
| Nov | 1.23 | 1.20 | 0.03 |
| Dec | 0.88 | 0.90 | -0.02 |
27.99 | 27.87 | 0.12 |