| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.78 | 3.81 | -0.03 |
| Feb | 2.90 | 3.16 | -0.26 |
| Mar | 4.42 | 4.58 | -0.16 |
| Apr | 3.66 | 3.74 | -0.08 |
| May | 3.74 | 3.75 | -0.01 |
| Jun | 4.01 | 4.17 | -0.16 |
| Jul | 4.78 | 4.55 | 0.23 |
| Aug | 4.46 | 4.51 | -0.05 |
| Sep | 4.03 | 4.01 | 0.02 |
| Oct | 4.16 | 4.25 | -0.09 |
| Nov | 3.30 | 3.48 | -0.18 |
| Dec | 4.45 | 4.67 | -0.22 |
47.69 | 48.68 | -0.99 |