| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.70 | 3.49 | 0.21 |
| Feb | 2.61 | 2.51 | 0.10 |
| Mar | 3.16 | 3.15 | 0.01 |
| Apr | 3.76 | 3.83 | -0.07 |
| May | 3.98 | 3.91 | 0.07 |
| Jun | 4.49 | 4.54 | -0.05 |
| Jul | 4.88 | 4.80 | 0.08 |
| Aug | 4.33 | 4.25 | 0.08 |
| Sep | 4.34 | 4.13 | 0.21 |
| Oct | 4.49 | 4.22 | 0.27 |
| Nov | 3.85 | 3.71 | 0.14 |
| Dec | 3.99 | 3.78 | 0.21 |
47.58 | 46.32 | 1.26 |