| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.68 | 0.05 |
| Feb | 0.80 | 0.74 | 0.06 |
| Mar | 1.52 | 1.49 | 0.03 |
| Apr | 2.57 | 2.58 | -0.01 |
| May | 3.66 | 3.69 | -0.03 |
| Jun | 4.24 | 4.37 | -0.13 |
| Jul | 4.03 | 3.87 | 0.16 |
| Aug | 3.87 | 3.90 | -0.03 |
| Sep | 2.88 | 2.98 | -0.10 |
| Oct | 2.62 | 2.66 | -0.04 |
| Nov | 1.38 | 1.35 | 0.03 |
| Dec | 0.90 | 0.90 | 0.00 |
29.20 | 29.21 | -0.01 |