| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.30 | 3.10 | 0.20 |
| Feb | 3.20 | 3.08 | 0.12 |
| Mar | 4.02 | 3.88 | 0.14 |
| Apr | 4.03 | 3.89 | 0.14 |
| May | 3.87 | 3.68 | 0.19 |
| Jun | 4.30 | 4.34 | -0.04 |
| Jul | 4.10 | 3.80 | 0.30 |
| Aug | 3.95 | 4.04 | -0.09 |
| Sep | 3.99 | 3.71 | 0.28 |
| Oct | 4.91 | 4.73 | 0.18 |
| Nov | 4.05 | 3.71 | 0.34 |
| Dec | 4.40 | 4.15 | 0.25 |
48.12 | 46.11 | 2.01 |