| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.94 | 4.16 | -0.22 |
| Feb | 3.49 | 3.60 | -0.11 |
| Mar | 4.91 | 5.18 | -0.27 |
| Apr | 4.34 | 4.64 | -0.30 |
| May | 3.43 | 3.46 | -0.03 |
| Jun | 3.85 | 4.04 | -0.19 |
| Jul | 3.24 | 3.28 | -0.04 |
| Aug | 3.66 | 3.75 | -0.09 |
| Sep | 4.00 | 4.01 | -0.01 |
| Oct | 4.52 | 4.73 | -0.21 |
| Nov | 4.21 | 4.26 | -0.05 |
| Dec | 4.73 | 4.99 | -0.26 |
48.32 | 50.10 | -1.78 |