| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.45 | 0.43 | 0.02 |
| Feb | 0.44 | 0.47 | -0.03 |
| Mar | 0.72 | 0.72 | 0.00 |
| Apr | 1.26 | 1.28 | -0.02 |
| May | 2.55 | 2.55 | 0.00 |
| Jun | 3.24 | 3.38 | -0.14 |
| Jul | 2.93 | 3.16 | -0.23 |
| Aug | 2.13 | 2.35 | -0.22 |
| Sep | 1.58 | 1.72 | -0.14 |
| Oct | 1.38 | 1.50 | -0.12 |
| Nov | 0.60 | 0.68 | -0.08 |
| Dec | 0.54 | 0.60 | -0.06 |
17.82 | 18.84 | -1.02 |