| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.66 | 1.61 | 0.05 |
| Feb | 1.24 | 1.10 | 0.14 |
| Mar | 1.76 | 1.70 | 0.06 |
| Apr | 2.89 | 2.81 | 0.08 |
| May | 3.12 | 3.18 | -0.06 |
| Jun | 3.33 | 3.22 | 0.11 |
| Jul | 3.25 | 3.00 | 0.25 |
| Aug | 3.06 | 2.95 | 0.11 |
| Sep | 3.26 | 3.15 | 0.11 |
| Oct | 3.33 | 3.30 | 0.03 |
| Nov | 2.29 | 2.23 | 0.06 |
| Dec | 1.94 | 1.76 | 0.18 |
31.13 | 30.01 | 1.12 |