| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.67 | 2.62 | 0.05 |
| Feb | 2.23 | 2.21 | 0.02 |
| Mar | 2.37 | 2.33 | 0.04 |
| Apr | 3.59 | 3.50 | 0.09 |
| May | 4.20 | 4.17 | 0.03 |
| Jun | 4.21 | 4.12 | 0.09 |
| Jul | 3.97 | 4.09 | -0.12 |
| Aug | 4.05 | 3.85 | 0.20 |
| Sep | 3.44 | 3.33 | 0.11 |
| Oct | 3.60 | 3.44 | 0.16 |
| Nov | 2.93 | 2.78 | 0.15 |
| Dec | 2.53 | 2.37 | 0.16 |
39.79 | 38.81 | 0.98 |