| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.73 | -0.05 |
| Feb | 0.80 | 0.78 | 0.02 |
| Mar | 1.49 | 1.53 | -0.04 |
| Apr | 2.69 | 2.68 | 0.01 |
| May | 3.90 | 4.06 | -0.16 |
| Jun | 4.19 | 4.28 | -0.09 |
| Jul | 3.94 | 3.96 | -0.02 |
| Aug | 3.96 | 4.07 | -0.11 |
| Sep | 3.04 | 3.15 | -0.11 |
| Oct | 2.61 | 2.71 | -0.10 |
| Nov | 1.40 | 1.41 | -0.01 |
| Dec | 0.94 | 1.02 | -0.08 |
29.64 | 30.38 | -0.74 |