| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.20 | 2.16 | 0.04 |
| Feb | 1.91 | 1.90 | 0.01 |
| Mar | 2.71 | 2.66 | 0.05 |
| Apr | 3.19 | 3.32 | -0.13 |
| May | 3.19 | 3.07 | 0.12 |
| Jun | 4.00 | 3.73 | 0.27 |
| Jul | 3.81 | 3.86 | -0.05 |
| Aug | 3.61 | 3.78 | -0.17 |
| Sep | 3.81 | 3.74 | 0.07 |
| Oct | 3.57 | 3.68 | -0.11 |
| Nov | 2.78 | 2.79 | -0.01 |
| Dec | 2.62 | 2.46 | 0.16 |
37.40 | 37.15 | 0.25 |