| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.85 | 3.57 | 0.28 |
| Feb | 2.71 | 2.50 | 0.21 |
| Mar | 2.44 | 2.27 | 0.17 |
| Apr | 1.77 | 1.87 | -0.10 |
| May | 1.34 | 1.38 | -0.04 |
| Jun | 0.70 | 0.74 | -0.04 |
| Jul | 0.31 | 0.31 | 0.00 |
| Aug | 0.27 | 0.31 | -0.04 |
| Sep | 0.47 | 0.46 | 0.01 |
| Oct | 1.57 | 1.54 | 0.03 |
| Nov | 3.26 | 3.24 | 0.02 |
| Dec | 4.68 | 4.48 | 0.20 |
23.37 | 22.67 | 0.70 |