| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.82 | 0.86 | -0.04 |
| Feb | 0.87 | 0.86 | 0.01 |
| Mar | 1.68 | 1.68 | 0.00 |
| Apr | 2.95 | 2.91 | 0.04 |
| May | 4.29 | 4.30 | -0.01 |
| Jun | 4.89 | 4.92 | -0.03 |
| Jul | 4.30 | 4.12 | 0.18 |
| Aug | 4.46 | 4.59 | -0.13 |
| Sep | 3.22 | 3.36 | -0.14 |
| Oct | 2.58 | 2.61 | -0.03 |
| Nov | 1.58 | 1.59 | -0.01 |
| Dec | 1.15 | 1.19 | -0.04 |
32.79 | 32.99 | -0.20 |