| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.79 | -0.10 |
| Feb | 0.80 | 0.87 | -0.07 |
| Mar | 1.46 | 1.55 | -0.09 |
| Apr | 2.79 | 2.88 | -0.09 |
| May | 4.09 | 4.19 | -0.10 |
| Jun | 4.40 | 4.44 | -0.04 |
| Jul | 4.01 | 4.22 | -0.21 |
| Aug | 4.01 | 4.05 | -0.04 |
| Sep | 3.20 | 3.30 | -0.10 |
| Oct | 2.72 | 2.72 | 0.00 |
| Nov | 1.48 | 1.58 | -0.10 |
| Dec | 1.00 | 1.15 | -0.15 |
30.65 | 31.74 | -1.09 |