| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.70 | 4.72 | -0.02 |
| Feb | 5.04 | 4.85 | 0.19 |
| Mar | 5.36 | 5.28 | 0.08 |
| Apr | 4.97 | 4.82 | 0.15 |
| May | 4.84 | 4.68 | 0.16 |
| Jun | 4.75 | 4.69 | 0.06 |
| Jul | 4.66 | 4.55 | 0.11 |
| Aug | 3.91 | 3.70 | 0.21 |
| Sep | 4.08 | 3.88 | 0.20 |
| Oct | 3.64 | 3.29 | 0.35 |
| Nov | 3.86 | 3.88 | -0.02 |
| Dec | 5.58 | 5.72 | -0.14 |
55.39 | 54.06 | 1.33 |