| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.75 | 0.85 | -0.10 |
| Feb | 0.78 | 0.86 | -0.08 |
| Mar | 1.55 | 1.60 | -0.05 |
| Apr | 2.86 | 3.02 | -0.16 |
| May | 4.16 | 4.33 | -0.17 |
| Jun | 4.48 | 4.52 | -0.04 |
| Jul | 4.23 | 4.24 | -0.01 |
| Aug | 4.27 | 4.16 | 0.11 |
| Sep | 3.23 | 3.20 | 0.03 |
| Oct | 2.87 | 2.74 | 0.13 |
| Nov | 1.58 | 1.66 | -0.08 |
| Dec | 1.04 | 1.22 | -0.18 |
31.80 | 32.40 | -0.60 |