| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.76 | -0.07 |
| Feb | 0.80 | 0.83 | -0.03 |
| Mar | 1.44 | 1.55 | -0.11 |
| Apr | 2.72 | 2.78 | -0.06 |
| May | 4.01 | 4.10 | -0.09 |
| Jun | 4.37 | 4.34 | 0.03 |
| Jul | 3.98 | 4.06 | -0.08 |
| Aug | 3.95 | 4.08 | -0.13 |
| Sep | 3.18 | 3.20 | -0.02 |
| Oct | 2.68 | 2.69 | -0.01 |
| Nov | 1.44 | 1.50 | -0.06 |
| Dec | 0.98 | 1.10 | -0.12 |
30.24 | 30.99 | -0.75 |