| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.49 | 3.50 | -0.01 |
| Feb | 2.81 | 2.66 | 0.15 |
| Mar | 4.01 | 3.95 | 0.06 |
| Apr | 3.59 | 3.30 | 0.29 |
| May | 4.30 | 4.24 | 0.06 |
| Jun | 3.91 | 3.80 | 0.11 |
| Jul | 4.42 | 4.39 | 0.03 |
| Aug | 3.86 | 3.97 | -0.11 |
| Sep | 4.40 | 4.59 | -0.19 |
| Oct | 3.69 | 3.68 | 0.01 |
| Nov | 3.37 | 3.33 | 0.04 |
| Dec | 3.61 | 3.65 | -0.04 |
45.46 | 45.06 | 0.40 |