| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.19 | 3.59 | -0.40 |
| Feb | 2.80 | 3.14 | -0.34 |
| Mar | 3.68 | 3.75 | -0.07 |
| Apr | 3.74 | 3.77 | -0.03 |
| May | 4.48 | 4.62 | -0.14 |
| Jun | 4.64 | 5.11 | -0.47 |
| Jul | 4.36 | 4.69 | -0.33 |
| Aug | 3.68 | 3.86 | -0.18 |
| Sep | 4.15 | 4.43 | -0.28 |
| Oct | 3.17 | 3.33 | -0.16 |
| Nov | 3.22 | 3.30 | -0.08 |
| Dec | 3.28 | 3.35 | -0.07 |
44.39 | 46.94 | -2.55 |