| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.69 | -0.12 |
| Feb | 3.25 | 3.24 | 0.01 |
| Mar | 4.25 | 4.29 | -0.04 |
| Apr | 4.14 | 4.22 | -0.08 |
| May | 3.60 | 3.51 | 0.09 |
| Jun | 4.12 | 4.11 | 0.01 |
| Jul | 3.74 | 3.69 | 0.05 |
| Aug | 3.84 | 3.84 | 0.00 |
| Sep | 3.97 | 3.86 | 0.11 |
| Oct | 4.78 | 4.66 | 0.12 |
| Nov | 3.84 | 3.80 | 0.04 |
| Dec | 4.50 | 4.68 | -0.18 |
47.60 | 47.59 | 0.01 |