| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.41 | 3.58 | -0.17 |
| Feb | 3.46 | 3.59 | -0.13 |
| Mar | 4.54 | 4.66 | -0.12 |
| Apr | 5.30 | 5.31 | -0.01 |
| May | 5.16 | 5.38 | -0.22 |
| Jun | 4.13 | 3.99 | 0.14 |
| Jul | 4.12 | 4.01 | 0.11 |
| Aug | 3.20 | 3.04 | 0.16 |
| Sep | 3.32 | 3.28 | 0.04 |
| Oct | 3.70 | 3.73 | -0.03 |
| Nov | 4.35 | 4.41 | -0.06 |
| Dec | 3.77 | 4.01 | -0.24 |
48.46 | 48.99 | -0.53 |