| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.83 | 0.80 | 0.03 |
| Feb | 0.87 | 0.90 | -0.03 |
| Mar | 1.46 | 1.48 | -0.02 |
| Apr | 2.68 | 2.77 | -0.09 |
| May | 3.64 | 3.78 | -0.14 |
| Jun | 4.16 | 4.24 | -0.08 |
| Jul | 4.17 | 4.23 | -0.06 |
| Aug | 3.81 | 3.95 | -0.14 |
| Sep | 3.55 | 3.53 | 0.02 |
| Oct | 3.05 | 3.12 | -0.07 |
| Nov | 1.66 | 1.64 | 0.02 |
| Dec | 1.19 | 1.23 | -0.04 |
31.07 | 31.67 | -0.60 |