| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.48 | 0.54 | -0.06 |
| Feb | 0.48 | 0.53 | -0.05 |
| Mar | 0.91 | 0.90 | 0.01 |
| Apr | 1.26 | 1.15 | 0.11 |
| May | 2.98 | 3.12 | -0.14 |
| Jun | 3.74 | 3.95 | -0.21 |
| Jul | 3.54 | 3.77 | -0.23 |
| Aug | 2.59 | 2.70 | -0.11 |
| Sep | 2.30 | 2.24 | 0.06 |
| Oct | 1.80 | 1.91 | -0.11 |
| Nov | 0.74 | 0.79 | -0.05 |
| Dec | 0.65 | 0.76 | -0.11 |
21.47 | 22.36 | -0.89 |