| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.04 | 3.13 | -0.09 |
| Feb | 2.72 | 2.84 | -0.12 |
| Mar | 4.00 | 4.06 | -0.06 |
| Apr | 3.47 | 3.51 | -0.04 |
| May | 3.97 | 4.18 | -0.21 |
| Jun | 4.19 | 4.18 | 0.01 |
| Jul | 4.43 | 4.49 | -0.06 |
| Aug | 4.36 | 4.10 | 0.26 |
| Sep | 4.44 | 4.46 | -0.02 |
| Oct | 4.03 | 4.17 | -0.14 |
| Nov | 3.16 | 3.24 | -0.08 |
| Dec | 3.71 | 3.91 | -0.20 |
45.52 | 46.27 | -0.75 |