| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.07 | 3.17 | -0.10 |
| Feb | 2.48 | 2.45 | 0.03 |
| Mar | 3.54 | 3.55 | -0.01 |
| Apr | 4.32 | 4.26 | 0.06 |
| May | 4.51 | 4.55 | -0.04 |
| Jun | 4.58 | 4.61 | -0.03 |
| Jul | 4.11 | 4.12 | -0.01 |
| Aug | 3.24 | 3.12 | 0.12 |
| Sep | 3.04 | 2.95 | 0.09 |
| Oct | 3.04 | 2.96 | 0.08 |
| Nov | 3.00 | 2.98 | 0.02 |
| Dec | 3.16 | 3.13 | 0.03 |
42.09 | 41.85 | 0.24 |