| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.70 | 0.02 |
| Feb | 3.67 | 3.71 | -0.04 |
| Mar | 3.71 | 3.74 | -0.03 |
| Apr | 3.17 | 3.20 | -0.03 |
| May | 3.30 | 3.24 | 0.06 |
| Jun | 5.60 | 5.43 | 0.17 |
| Jul | 5.24 | 5.17 | 0.07 |
| Aug | 5.62 | 5.86 | -0.24 |
| Sep | 3.86 | 3.96 | -0.10 |
| Oct | 3.13 | 3.02 | 0.11 |
| Nov | 2.69 | 2.64 | 0.05 |
| Dec | 3.56 | 3.61 | -0.05 |
47.27 | 47.28 | -0.01 |