| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.74 | -0.05 |
| Feb | 0.78 | 0.78 | 0.00 |
| Mar | 1.59 | 1.62 | -0.03 |
| Apr | 2.87 | 2.90 | -0.03 |
| May | 4.03 | 4.17 | -0.14 |
| Jun | 4.87 | 5.07 | -0.20 |
| Jul | 3.79 | 3.68 | 0.11 |
| Aug | 4.00 | 3.81 | 0.19 |
| Sep | 3.14 | 3.18 | -0.04 |
| Oct | 2.35 | 2.33 | 0.02 |
| Nov | 1.42 | 1.33 | 0.09 |
| Dec | 0.90 | 0.97 | -0.07 |
30.43 | 30.58 | -0.15 |