| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.56 | -0.01 |
| Feb | 0.68 | 0.70 | -0.02 |
| Mar | 1.43 | 1.45 | -0.02 |
| Apr | 2.71 | 2.76 | -0.05 |
| May | 4.50 | 4.77 | -0.27 |
| Jun | 4.05 | 3.99 | 0.06 |
| Jul | 3.55 | 3.54 | 0.01 |
| Aug | 3.23 | 3.29 | -0.06 |
| Sep | 2.02 | 2.08 | -0.06 |
| Oct | 2.10 | 2.07 | 0.03 |
| Nov | 1.15 | 1.13 | 0.02 |
| Dec | 0.78 | 0.85 | -0.07 |
26.75 | 27.19 | -0.44 |