| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.02 | 2.22 | -0.20 |
| Feb | 1.84 | 2.00 | -0.16 |
| Mar | 2.40 | 2.36 | 0.04 |
| Apr | 3.85 | 3.93 | -0.08 |
| May | 4.58 | 4.70 | -0.12 |
| Jun | 4.37 | 4.43 | -0.06 |
| Jul | 3.78 | 3.93 | -0.15 |
| Aug | 4.13 | 4.04 | 0.09 |
| Sep | 3.29 | 3.24 | 0.05 |
| Oct | 3.54 | 3.48 | 0.06 |
| Nov | 2.58 | 2.61 | -0.03 |
| Dec | 2.15 | 2.27 | -0.12 |
38.53 | 39.21 | -0.68 |