| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.48 | 2.64 | -0.16 |
| Feb | 2.33 | 2.30 | 0.03 |
| Mar | 2.71 | 2.65 | 0.06 |
| Apr | 3.18 | 3.30 | -0.12 |
| May | 3.57 | 3.33 | 0.24 |
| Jun | 4.34 | 4.29 | 0.05 |
| Jul | 4.39 | 4.01 | 0.38 |
| Aug | 3.88 | 3.75 | 0.13 |
| Sep | 3.36 | 3.17 | 0.19 |
| Oct | 4.06 | 3.72 | 0.34 |
| Nov | 2.91 | 3.00 | -0.09 |
| Dec | 3.08 | 3.30 | -0.22 |
40.29 | 39.46 | 0.83 |