| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.98 | 4.65 | 0.33 |
| Feb | 4.85 | 4.21 | 0.64 |
| Mar | 3.41 | 2.89 | 0.52 |
| Apr | 1.71 | 1.41 | 0.30 |
| May | 1.25 | 1.28 | -0.03 |
| Jun | 0.47 | 0.50 | -0.03 |
| Jul | 0.03 | 0.03 | 0.00 |
| Aug | 0.06 | 0.05 | 0.01 |
| Sep | 0.23 | 0.19 | 0.04 |
| Oct | 1.25 | 0.88 | 0.37 |
| Nov | 2.56 | 2.31 | 0.25 |
| Dec | 4.44 | 4.29 | 0.15 |
25.24 | 22.69 | 2.55 |