| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.18 | 4.26 | -0.08 |
| Feb | 2.87 | 3.04 | -0.17 |
| Mar | 3.33 | 3.42 | -0.09 |
| Apr | 3.90 | 4.04 | -0.14 |
| May | 5.08 | 4.97 | 0.11 |
| Jun | 5.41 | 5.45 | -0.04 |
| Jul | 4.21 | 4.27 | -0.06 |
| Aug | 4.91 | 5.33 | -0.42 |
| Sep | 5.54 | 5.62 | -0.08 |
| Oct | 5.00 | 5.03 | -0.03 |
| Nov | 4.20 | 4.53 | -0.33 |
| Dec | 4.08 | 4.23 | -0.15 |
52.71 | 54.19 | -1.48 |