| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 3.76 | -0.12 |
| Feb | 3.91 | 3.99 | -0.08 |
| Mar | 4.77 | 4.83 | -0.06 |
| Apr | 5.18 | 5.20 | -0.02 |
| May | 5.40 | 5.11 | 0.29 |
| Jun | 3.49 | 3.49 | 0.00 |
| Jul | 4.03 | 3.91 | 0.12 |
| Aug | 3.60 | 3.51 | 0.09 |
| Sep | 3.31 | 3.31 | 0.00 |
| Oct | 3.82 | 4.15 | -0.33 |
| Nov | 4.45 | 4.64 | -0.19 |
| Dec | 4.39 | 4.60 | -0.21 |
49.99 | 50.50 | -0.51 |