| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.64 | 2.61 | 0.03 |
| Feb | 2.16 | 2.20 | -0.04 |
| Mar | 2.37 | 2.36 | 0.01 |
| Apr | 3.62 | 3.56 | 0.06 |
| May | 4.24 | 4.28 | -0.04 |
| Jun | 4.27 | 4.30 | -0.03 |
| Jul | 4.01 | 4.24 | -0.23 |
| Aug | 4.10 | 4.05 | 0.05 |
| Sep | 3.38 | 3.30 | 0.08 |
| Oct | 3.52 | 3.47 | 0.05 |
| Nov | 2.90 | 2.91 | -0.01 |
| Dec | 2.50 | 2.42 | 0.08 |
39.71 | 39.70 | 0.01 |