| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.47 | 3.51 | -0.04 |
| Feb | 2.98 | 2.99 | -0.01 |
| Mar | 4.03 | 4.13 | -0.10 |
| Apr | 3.42 | 3.48 | -0.06 |
| May | 3.64 | 3.68 | -0.04 |
| Jun | 3.99 | 4.12 | -0.13 |
| Jul | 4.37 | 4.28 | 0.09 |
| Aug | 4.93 | 5.10 | -0.17 |
| Sep | 4.12 | 4.34 | -0.22 |
| Oct | 3.83 | 4.04 | -0.21 |
| Nov | 3.19 | 3.25 | -0.06 |
| Dec | 3.64 | 3.82 | -0.18 |
45.61 | 46.74 | -1.13 |