| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 4.11 | -0.26 |
| Feb | 3.48 | 3.59 | -0.11 |
| Mar | 4.76 | 4.92 | -0.16 |
| Apr | 4.12 | 4.22 | -0.10 |
| May | 3.42 | 3.44 | -0.02 |
| Jun | 3.36 | 3.24 | 0.12 |
| Jul | 2.65 | 2.66 | -0.01 |
| Aug | 3.41 | 3.54 | -0.13 |
| Sep | 4.04 | 3.75 | 0.29 |
| Oct | 4.68 | 4.62 | 0.06 |
| Nov | 4.18 | 4.11 | 0.07 |
| Dec | 4.72 | 4.92 | -0.20 |
46.67 | 47.12 | -0.45 |