| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.77 | 2.88 | -0.11 |
| Feb | 2.37 | 2.43 | -0.06 |
| Mar | 3.14 | 3.10 | 0.04 |
| Apr | 4.57 | 4.74 | -0.17 |
| May | 4.40 | 4.49 | -0.09 |
| Jun | 4.86 | 4.97 | -0.11 |
| Jul | 4.10 | 4.19 | -0.09 |
| Aug | 3.07 | 3.10 | -0.03 |
| Sep | 2.91 | 3.03 | -0.12 |
| Oct | 3.64 | 3.65 | -0.01 |
| Nov | 3.61 | 3.61 | 0.00 |
| Dec | 2.72 | 2.81 | -0.09 |
42.16 | 43.00 | -0.84 |