| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.77 | -0.07 |
| Feb | 0.75 | 0.87 | -0.12 |
| Mar | 1.44 | 1.45 | -0.01 |
| Apr | 2.83 | 2.82 | 0.01 |
| May | 4.06 | 4.16 | -0.10 |
| Jun | 4.74 | 4.59 | 0.15 |
| Jul | 3.86 | 3.90 | -0.04 |
| Aug | 4.13 | 4.22 | -0.09 |
| Sep | 3.42 | 3.21 | 0.21 |
| Oct | 2.50 | 2.49 | 0.01 |
| Nov | 1.45 | 1.48 | -0.03 |
| Dec | 1.08 | 1.12 | -0.04 |
30.96 | 31.08 | -0.12 |