| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.74 | 0.77 | -0.03 |
| Feb | 0.80 | 0.80 | 0.00 |
| Mar | 1.53 | 1.47 | 0.06 |
| Apr | 2.77 | 2.87 | -0.10 |
| May | 4.11 | 3.95 | 0.16 |
| Jun | 4.25 | 4.32 | -0.07 |
| Jul | 4.42 | 4.34 | 0.08 |
| Aug | 4.01 | 4.05 | -0.04 |
| Sep | 3.40 | 3.21 | 0.19 |
| Oct | 2.80 | 2.87 | -0.07 |
| Nov | 1.58 | 1.61 | -0.03 |
| Dec | 1.08 | 1.10 | -0.02 |
31.49 | 31.36 | 0.13 |