| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.86 | 0.88 | -0.02 |
| Feb | 0.90 | 0.91 | -0.01 |
| Mar | 1.72 | 1.71 | 0.01 |
| Apr | 3.02 | 2.93 | 0.09 |
| May | 4.17 | 4.37 | -0.20 |
| Jun | 5.19 | 5.04 | 0.15 |
| Jul | 4.39 | 4.04 | 0.35 |
| Aug | 4.48 | 4.57 | -0.09 |
| Sep | 3.58 | 3.40 | 0.18 |
| Oct | 2.61 | 2.47 | 0.14 |
| Nov | 1.58 | 1.61 | -0.03 |
| Dec | 1.13 | 1.22 | -0.09 |
33.63 | 33.15 | 0.48 |