| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.02 | 3.17 | -0.15 |
| Feb | 2.50 | 2.42 | 0.08 |
| Mar | 3.56 | 3.54 | 0.02 |
| Apr | 4.33 | 4.20 | 0.13 |
| May | 4.53 | 4.59 | -0.06 |
| Jun | 4.59 | 4.57 | 0.02 |
| Jul | 4.17 | 4.23 | -0.06 |
| Aug | 3.20 | 3.22 | -0.02 |
| Sep | 3.02 | 2.89 | 0.13 |
| Oct | 2.99 | 2.91 | 0.08 |
| Nov | 3.04 | 2.96 | 0.08 |
| Dec | 3.16 | 3.08 | 0.08 |
42.11 | 41.78 | 0.33 |