| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.22 | 0.08 |
| Feb | 2.81 | 2.94 | -0.13 |
| Mar | 3.64 | 3.70 | -0.06 |
| Apr | 3.61 | 3.91 | -0.30 |
| May | 4.41 | 4.65 | -0.24 |
| Jun | 4.64 | 4.74 | -0.10 |
| Jul | 4.18 | 4.36 | -0.18 |
| Aug | 3.76 | 3.79 | -0.03 |
| Sep | 4.30 | 4.85 | -0.55 |
| Oct | 3.25 | 3.62 | -0.37 |
| Nov | 3.14 | 3.21 | -0.07 |
| Dec | 3.26 | 3.45 | -0.19 |
44.30 | 46.44 | -2.14 |