| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.40 | 3.44 | -0.04 |
| Feb | 3.16 | 3.17 | -0.01 |
| Mar | 4.28 | 4.19 | 0.09 |
| Apr | 5.04 | 4.88 | 0.16 |
| May | 5.42 | 5.12 | 0.30 |
| Jun | 5.01 | 4.77 | 0.24 |
| Jul | 4.55 | 4.57 | -0.02 |
| Aug | 3.90 | 3.59 | 0.31 |
| Sep | 3.42 | 3.26 | 0.16 |
| Oct | 3.45 | 3.32 | 0.13 |
| Nov | 3.50 | 3.30 | 0.20 |
| Dec | 4.03 | 4.22 | -0.19 |
49.16 | 47.83 | 1.33 |