| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.07 | 1.14 | -0.07 |
| Feb | 0.99 | 1.06 | -0.07 |
| Mar | 1.50 | 1.68 | -0.18 |
| Apr | 2.59 | 2.91 | -0.32 |
| May | 3.43 | 3.51 | -0.08 |
| Jun | 3.93 | 4.23 | -0.30 |
| Jul | 4.19 | 4.30 | -0.11 |
| Aug | 3.76 | 4.01 | -0.25 |
| Sep | 3.20 | 3.41 | -0.21 |
| Oct | 3.22 | 3.25 | -0.03 |
| Nov | 1.93 | 2.04 | -0.11 |
| Dec | 1.53 | 1.63 | -0.10 |
31.34 | 33.17 | -1.83 |