| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.64 | -0.01 |
| Feb | 0.70 | 0.72 | -0.02 |
| Mar | 1.48 | 1.51 | -0.03 |
| Apr | 2.74 | 2.80 | -0.06 |
| May | 4.78 | 4.83 | -0.05 |
| Jun | 4.18 | 4.25 | -0.07 |
| Jul | 3.33 | 3.35 | -0.02 |
| Aug | 3.43 | 3.53 | -0.10 |
| Sep | 2.48 | 2.42 | 0.06 |
| Oct | 2.18 | 2.16 | 0.02 |
| Nov | 1.25 | 1.30 | -0.05 |
| Dec | 0.91 | 0.98 | -0.07 |
28.09 | 28.49 | -0.40 |