| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.54 | -0.02 |
| Feb | 2.85 | 2.86 | -0.01 |
| Mar | 4.05 | 3.97 | 0.08 |
| Apr | 3.68 | 3.69 | -0.01 |
| May | 3.88 | 3.99 | -0.11 |
| Jun | 4.53 | 4.32 | 0.21 |
| Jul | 5.24 | 5.28 | -0.04 |
| Aug | 4.97 | 5.19 | -0.22 |
| Sep | 5.00 | 4.96 | 0.04 |
| Oct | 3.91 | 4.16 | -0.25 |
| Nov | 3.09 | 3.05 | 0.04 |
| Dec | 3.62 | 3.61 | 0.01 |
48.34 | 48.62 | -0.28 |