| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.71 | -0.14 |
| Feb | 3.37 | 3.53 | -0.16 |
| Mar | 4.17 | 4.29 | -0.12 |
| Apr | 4.29 | 4.33 | -0.04 |
| May | 3.68 | 3.65 | 0.03 |
| Jun | 4.28 | 4.43 | -0.15 |
| Jul | 3.37 | 3.31 | 0.06 |
| Aug | 3.24 | 3.19 | 0.05 |
| Sep | 4.04 | 3.91 | 0.13 |
| Oct | 5.16 | 5.23 | -0.07 |
| Nov | 4.53 | 4.48 | 0.05 |
| Dec | 4.45 | 4.67 | -0.22 |
48.15 | 48.73 | -0.58 |