| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.60 | 3.89 | -0.29 |
| Feb | 3.51 | 3.62 | -0.11 |
| Mar | 3.65 | 3.81 | -0.16 |
| Apr | 3.09 | 3.23 | -0.14 |
| May | 3.43 | 3.58 | -0.15 |
| Jun | 5.00 | 4.96 | 0.04 |
| Jul | 5.30 | 5.27 | 0.03 |
| Aug | 5.01 | 5.00 | 0.01 |
| Sep | 4.25 | 4.39 | -0.14 |
| Oct | 3.24 | 3.35 | -0.11 |
| Nov | 2.78 | 2.89 | -0.11 |
| Dec | 3.61 | 3.73 | -0.12 |
46.47 | 47.72 | -1.25 |