| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.74 | 3.77 | -0.03 |
| Feb | 2.91 | 2.97 | -0.06 |
| Mar | 3.92 | 4.02 | -0.10 |
| Apr | 3.76 | 3.77 | -0.01 |
| May | 4.28 | 4.35 | -0.07 |
| Jun | 4.42 | 4.48 | -0.06 |
| Jul | 4.22 | 4.10 | 0.12 |
| Aug | 4.17 | 4.21 | -0.04 |
| Sep | 4.71 | 4.95 | -0.24 |
| Oct | 3.58 | 3.47 | 0.11 |
| Nov | 3.26 | 3.19 | 0.07 |
| Dec | 3.60 | 3.57 | 0.03 |
46.57 | 46.85 | -0.28 |