| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.41 | 0.48 | -0.07 |
| Feb | 0.56 | 0.61 | -0.05 |
| Mar | 0.99 | 1.07 | -0.08 |
| Apr | 2.46 | 2.62 | -0.16 |
| May | 3.41 | 3.53 | -0.12 |
| Jun | 3.71 | 3.88 | -0.17 |
| Jul | 2.62 | 2.76 | -0.14 |
| Aug | 2.62 | 2.61 | 0.01 |
| Sep | 2.00 | 2.13 | -0.13 |
| Oct | 1.71 | 1.85 | -0.14 |
| Nov | 0.66 | 0.77 | -0.11 |
| Dec | 0.48 | 0.58 | -0.10 |
21.63 | 22.89 | -1.26 |