| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.68 | 0.72 | -0.04 |
| Feb | 0.91 | 0.83 | 0.08 |
| Mar | 1.61 | 1.47 | 0.14 |
| Apr | 2.63 | 2.77 | -0.14 |
| May | 5.03 | 5.15 | -0.12 |
| Jun | 4.46 | 4.45 | 0.01 |
| Jul | 3.87 | 3.81 | 0.06 |
| Aug | 3.48 | 3.38 | 0.10 |
| Sep | 2.80 | 2.84 | -0.04 |
| Oct | 2.32 | 2.24 | 0.08 |
| Nov | 1.30 | 1.37 | -0.07 |
| Dec | 1.12 | 0.99 | 0.13 |
30.21 | 30.02 | 0.19 |