| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.75 | 3.78 | -0.03 |
| Feb | 3.32 | 3.27 | 0.05 |
| Mar | 4.39 | 4.42 | -0.03 |
| Apr | 4.26 | 4.32 | -0.06 |
| May | 3.66 | 3.50 | 0.16 |
| Jun | 4.15 | 4.19 | -0.04 |
| Jul | 3.66 | 3.60 | 0.06 |
| Aug | 3.84 | 3.91 | -0.07 |
| Sep | 3.96 | 3.91 | 0.05 |
| Oct | 4.89 | 4.75 | 0.14 |
| Nov | 3.92 | 3.86 | 0.06 |
| Dec | 4.65 | 4.75 | -0.10 |
48.45 | 48.26 | 0.19 |