| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.44 | 0.03 |
| Feb | 2.93 | 2.91 | 0.02 |
| Mar | 4.02 | 4.15 | -0.13 |
| Apr | 3.41 | 3.45 | -0.04 |
| May | 3.66 | 3.82 | -0.16 |
| Jun | 3.96 | 4.10 | -0.14 |
| Jul | 4.20 | 4.29 | -0.09 |
| Aug | 5.01 | 4.68 | 0.33 |
| Sep | 4.09 | 4.45 | -0.36 |
| Oct | 3.84 | 4.17 | -0.33 |
| Nov | 3.18 | 3.27 | -0.09 |
| Dec | 3.70 | 3.85 | -0.15 |
45.47 | 46.58 | -1.11 |