| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.55 | -0.16 |
| Feb | 2.90 | 3.03 | -0.13 |
| Mar | 4.07 | 4.14 | -0.07 |
| Apr | 3.83 | 4.05 | -0.22 |
| May | 3.87 | 4.05 | -0.18 |
| Jun | 4.32 | 4.56 | -0.24 |
| Jul | 4.45 | 4.61 | -0.16 |
| Aug | 4.24 | 4.47 | -0.23 |
| Sep | 4.04 | 4.20 | -0.16 |
| Oct | 4.09 | 4.28 | -0.19 |
| Nov | 3.40 | 3.43 | -0.03 |
| Dec | 4.20 | 4.34 | -0.14 |
46.80 | 48.71 | -1.91 |