| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.58 | 0.17 |
| Feb | 3.35 | 3.28 | 0.07 |
| Mar | 4.26 | 4.24 | 0.02 |
| Apr | 4.28 | 4.19 | 0.09 |
| May | 3.75 | 3.65 | 0.10 |
| Jun | 4.35 | 4.16 | 0.19 |
| Jul | 3.92 | 3.81 | 0.11 |
| Aug | 4.20 | 4.18 | 0.02 |
| Sep | 4.24 | 4.03 | 0.21 |
| Oct | 4.96 | 4.99 | -0.03 |
| Nov | 3.96 | 3.72 | 0.24 |
| Dec | 4.36 | 4.55 | -0.19 |
49.38 | 48.38 | 1.00 |