| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.69 | 0.05 |
| Feb | 0.77 | 0.76 | 0.01 |
| Mar | 1.60 | 1.57 | 0.03 |
| Apr | 3.13 | 3.08 | 0.05 |
| May | 4.45 | 4.28 | 0.17 |
| Jun | 4.94 | 4.72 | 0.22 |
| Jul | 3.72 | 3.77 | -0.05 |
| Aug | 3.68 | 3.71 | -0.03 |
| Sep | 3.10 | 3.11 | -0.01 |
| Oct | 2.35 | 2.34 | 0.01 |
| Nov | 1.40 | 1.28 | 0.12 |
| Dec | 0.95 | 0.88 | 0.07 |
30.83 | 30.19 | 0.64 |