| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.63 | -0.11 |
| Feb | 3.00 | 3.19 | -0.19 |
| Mar | 3.85 | 3.96 | -0.11 |
| Apr | 3.77 | 3.95 | -0.18 |
| May | 4.48 | 4.61 | -0.13 |
| Jun | 4.28 | 4.52 | -0.24 |
| Jul | 4.90 | 4.92 | -0.02 |
| Aug | 3.82 | 3.83 | -0.01 |
| Sep | 3.47 | 3.58 | -0.11 |
| Oct | 3.23 | 3.26 | -0.03 |
| Nov | 3.03 | 3.15 | -0.12 |
| Dec | 3.53 | 3.73 | -0.20 |
44.88 | 46.33 | -1.45 |