| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.53 | 0.54 | -0.01 |
| Feb | 0.44 | 0.44 | 0.00 |
| Mar | 1.18 | 1.25 | -0.07 |
| Apr | 1.61 | 1.73 | -0.12 |
| May | 2.33 | 2.53 | -0.20 |
| Jun | 2.76 | 3.14 | -0.38 |
| Jul | 2.84 | 2.65 | 0.19 |
| Aug | 2.91 | 2.82 | 0.09 |
| Sep | 1.50 | 1.61 | -0.11 |
| Oct | 1.72 | 1.95 | -0.23 |
| Nov | 0.63 | 0.77 | -0.14 |
| Dec | 0.77 | 0.92 | -0.15 |
19.22 | 20.35 | -1.13 |