| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.80 | 1.76 | 0.04 |
| Feb | 1.68 | 1.72 | -0.04 |
| Mar | 2.35 | 2.37 | -0.02 |
| Apr | 2.37 | 2.33 | 0.04 |
| May | 3.94 | 4.04 | -0.10 |
| Jun | 3.28 | 3.48 | -0.20 |
| Jul | 2.30 | 2.72 | -0.42 |
| Aug | 2.40 | 2.35 | 0.05 |
| Sep | 3.43 | 3.50 | -0.07 |
| Oct | 3.24 | 3.23 | 0.01 |
| Nov | 2.07 | 2.18 | -0.11 |
| Dec | 1.76 | 1.85 | -0.09 |
30.62 | 31.53 | -0.91 |