| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.63 | 0.01 |
| Feb | 0.87 | 0.89 | -0.02 |
| Mar | 1.46 | 1.46 | 0.00 |
| Apr | 2.60 | 2.70 | -0.10 |
| May | 4.43 | 4.54 | -0.11 |
| Jun | 4.09 | 4.38 | -0.29 |
| Jul | 4.33 | 4.30 | 0.03 |
| Aug | 3.39 | 3.62 | -0.23 |
| Sep | 2.72 | 2.93 | -0.21 |
| Oct | 2.12 | 2.20 | -0.08 |
| Nov | 1.24 | 1.19 | 0.05 |
| Dec | 0.95 | 0.91 | 0.04 |
28.84 | 29.75 | -0.91 |