| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.39 | 3.44 | -0.05 |
| Feb | 2.80 | 2.72 | 0.08 |
| Mar | 3.91 | 4.09 | -0.18 |
| Apr | 3.44 | 3.34 | 0.10 |
| May | 4.23 | 4.20 | 0.03 |
| Jun | 3.75 | 3.55 | 0.20 |
| Jul | 4.32 | 4.07 | 0.25 |
| Aug | 3.80 | 3.77 | 0.03 |
| Sep | 4.45 | 4.58 | -0.13 |
| Oct | 3.70 | 3.60 | 0.10 |
| Nov | 3.39 | 3.33 | 0.06 |
| Dec | 3.61 | 3.55 | 0.06 |
44.79 | 44.24 | 0.55 |