| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.13 | 4.27 | -0.14 |
| Feb | 3.62 | 3.73 | -0.11 |
| Mar | 4.57 | 4.68 | -0.11 |
| Apr | 4.21 | 4.22 | -0.01 |
| May | 3.74 | 3.86 | -0.12 |
| Jun | 4.24 | 4.19 | 0.05 |
| Jul | 4.13 | 3.99 | 0.14 |
| Aug | 4.52 | 4.43 | 0.09 |
| Sep | 3.80 | 3.82 | -0.02 |
| Oct | 3.53 | 3.78 | -0.25 |
| Nov | 3.72 | 3.75 | -0.03 |
| Dec | 4.30 | 4.51 | -0.21 |
48.51 | 49.23 | -0.72 |