| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.44 | 0.03 |
| Feb | 2.94 | 2.91 | 0.03 |
| Mar | 4.03 | 4.14 | -0.11 |
| Apr | 3.41 | 3.45 | -0.04 |
| May | 3.65 | 3.80 | -0.15 |
| Jun | 3.96 | 4.11 | -0.15 |
| Jul | 4.25 | 4.29 | -0.04 |
| Aug | 5.01 | 4.69 | 0.32 |
| Sep | 4.12 | 4.44 | -0.32 |
| Oct | 3.86 | 4.15 | -0.29 |
| Nov | 3.19 | 3.27 | -0.08 |
| Dec | 3.69 | 3.84 | -0.15 |
45.58 | 46.53 | -0.95 |