| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.76 | -0.19 |
| Feb | 2.99 | 3.14 | -0.15 |
| Mar | 4.32 | 4.25 | 0.07 |
| Apr | 3.76 | 3.88 | -0.12 |
| May | 3.91 | 3.80 | 0.11 |
| Jun | 4.08 | 4.08 | 0.00 |
| Jul | 4.22 | 4.16 | 0.06 |
| Aug | 4.61 | 4.92 | -0.31 |
| Sep | 3.90 | 3.90 | 0.00 |
| Oct | 4.05 | 4.21 | -0.16 |
| Nov | 3.33 | 3.38 | -0.05 |
| Dec | 4.30 | 4.61 | -0.31 |
47.04 | 48.09 | -1.05 |