| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.63 | 0.01 |
| Feb | 0.86 | 0.88 | -0.02 |
| Mar | 1.46 | 1.48 | -0.02 |
| Apr | 2.59 | 2.69 | -0.10 |
| May | 4.48 | 4.54 | -0.06 |
| Jun | 4.08 | 4.36 | -0.28 |
| Jul | 4.35 | 4.29 | 0.06 |
| Aug | 3.39 | 3.58 | -0.19 |
| Sep | 2.72 | 2.89 | -0.17 |
| Oct | 2.15 | 2.18 | -0.03 |
| Nov | 1.23 | 1.20 | 0.03 |
| Dec | 0.94 | 0.92 | 0.02 |
28.89 | 29.64 | -0.75 |