| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.55 | 0.59 | -0.04 |
| Feb | 0.62 | 0.63 | -0.01 |
| Mar | 1.40 | 1.34 | 0.06 |
| Apr | 1.92 | 1.88 | 0.04 |
| May | 3.12 | 3.16 | -0.04 |
| Jun | 3.48 | 3.34 | 0.14 |
| Jul | 3.33 | 3.11 | 0.22 |
| Aug | 3.09 | 3.06 | 0.03 |
| Sep | 1.53 | 1.48 | 0.05 |
| Oct | 1.99 | 1.94 | 0.05 |
| Nov | 0.79 | 0.77 | 0.02 |
| Dec | 0.86 | 0.90 | -0.04 |
22.68 | 22.20 | 0.48 |