| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.76 | -0.39 |
| Feb | 2.59 | 2.89 | -0.30 |
| Mar | 2.74 | 3.01 | -0.27 |
| Apr | 3.36 | 3.43 | -0.07 |
| May | 3.31 | 3.32 | -0.01 |
| Jun | 3.55 | 3.37 | 0.18 |
| Jul | 3.51 | 3.41 | 0.10 |
| Aug | 3.48 | 3.45 | 0.03 |
| Sep | 3.61 | 3.84 | -0.23 |
| Oct | 4.41 | 4.60 | -0.19 |
| Nov | 3.88 | 4.08 | -0.20 |
| Dec | 3.64 | 3.91 | -0.27 |
41.45 | 43.07 | -1.62 |