| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.66 | 1.61 | 0.05 |
| Feb | 1.87 | 1.81 | 0.06 |
| Mar | 2.56 | 2.48 | 0.08 |
| Apr | 3.96 | 3.89 | 0.07 |
| May | 5.12 | 5.14 | -0.02 |
| Jun | 4.99 | 5.01 | -0.02 |
| Jul | 4.23 | 4.15 | 0.08 |
| Aug | 3.74 | 3.75 | -0.01 |
| Sep | 3.67 | 3.57 | 0.10 |
| Oct | 3.16 | 3.13 | 0.03 |
| Nov | 2.48 | 2.49 | -0.01 |
| Dec | 1.90 | 1.87 | 0.03 |
39.34 | 38.90 | 0.44 |