| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.72 | 3.67 | 0.05 |
| Feb | 3.25 | 3.24 | 0.01 |
| Mar | 4.27 | 4.35 | -0.08 |
| Apr | 4.35 | 4.37 | -0.02 |
| May | 3.63 | 3.58 | 0.05 |
| Jun | 4.34 | 4.28 | 0.06 |
| Jul | 3.84 | 3.89 | -0.05 |
| Aug | 4.22 | 4.20 | 0.02 |
| Sep | 4.13 | 4.17 | -0.04 |
| Oct | 4.90 | 4.98 | -0.08 |
| Nov | 3.95 | 3.77 | 0.18 |
| Dec | 4.44 | 4.53 | -0.09 |
49.04 | 49.03 | 0.01 |