| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.80 | 3.93 | -0.13 |
| Feb | 3.00 | 3.06 | -0.06 |
| Mar | 4.09 | 3.99 | 0.10 |
| Apr | 4.23 | 4.30 | -0.07 |
| May | 4.21 | 4.22 | -0.01 |
| Jun | 5.24 | 5.13 | 0.11 |
| Jul | 4.70 | 5.06 | -0.36 |
| Aug | 4.67 | 5.11 | -0.44 |
| Sep | 5.40 | 5.32 | 0.08 |
| Oct | 4.88 | 5.23 | -0.35 |
| Nov | 3.77 | 3.85 | -0.08 |
| Dec | 4.36 | 4.66 | -0.30 |
52.35 | 53.86 | -1.51 |