| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.53 | -0.13 |
| Feb | 2.80 | 2.81 | -0.01 |
| Mar | 4.05 | 4.34 | -0.29 |
| Apr | 3.71 | 3.62 | 0.09 |
| May | 3.81 | 3.90 | -0.09 |
| Jun | 4.30 | 4.22 | 0.08 |
| Jul | 4.77 | 4.73 | 0.04 |
| Aug | 4.42 | 4.71 | -0.29 |
| Sep | 4.12 | 4.15 | -0.03 |
| Oct | 3.90 | 4.05 | -0.15 |
| Nov | 3.23 | 3.26 | -0.03 |
| Dec | 4.14 | 4.36 | -0.22 |
46.65 | 47.68 | -1.03 |