| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.90 | 0.90 | 0.00 |
| Feb | 0.94 | 0.93 | 0.01 |
| Mar | 1.84 | 1.80 | 0.04 |
| Apr | 3.23 | 3.07 | 0.16 |
| May | 4.38 | 4.28 | 0.10 |
| Jun | 5.34 | 5.10 | 0.24 |
| Jul | 4.56 | 4.57 | -0.01 |
| Aug | 4.65 | 4.49 | 0.16 |
| Sep | 3.64 | 3.52 | 0.12 |
| Oct | 2.54 | 2.48 | 0.06 |
| Nov | 1.61 | 1.55 | 0.06 |
| Dec | 1.18 | 1.21 | -0.03 |
34.81 | 33.90 | 0.91 |