| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.29 | 4.29 | 0.00 |
| Feb | 4.04 | 4.12 | -0.08 |
| Mar | 4.58 | 4.60 | -0.02 |
| Apr | 3.48 | 3.55 | -0.07 |
| May | 3.64 | 3.50 | 0.14 |
| Jun | 4.23 | 4.18 | 0.05 |
| Jul | 3.91 | 3.96 | -0.05 |
| Aug | 4.16 | 4.32 | -0.16 |
| Sep | 3.53 | 3.66 | -0.13 |
| Oct | 3.28 | 3.32 | -0.04 |
| Nov | 3.69 | 3.90 | -0.21 |
| Dec | 4.52 | 4.69 | -0.17 |
47.35 | 48.09 | -0.74 |