| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.90 | 4.14 | -0.24 |
| Feb | 3.45 | 3.64 | -0.19 |
| Mar | 4.92 | 5.37 | -0.45 |
| Apr | 4.40 | 4.72 | -0.32 |
| May | 3.52 | 3.56 | -0.04 |
| Jun | 3.76 | 3.90 | -0.14 |
| Jul | 3.21 | 3.24 | -0.03 |
| Aug | 3.79 | 3.93 | -0.14 |
| Sep | 3.97 | 3.98 | -0.01 |
| Oct | 4.66 | 4.77 | -0.11 |
| Nov | 4.10 | 4.27 | -0.17 |
| Dec | 4.80 | 5.13 | -0.33 |
48.48 | 50.65 | -2.17 |