| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.70 | 0.67 | 0.03 |
| Feb | 0.69 | 0.71 | -0.02 |
| Mar | 1.31 | 1.29 | 0.02 |
| Apr | 2.32 | 2.26 | 0.06 |
| May | 3.36 | 3.43 | -0.07 |
| Jun | 4.33 | 4.37 | -0.04 |
| Jul | 4.34 | 4.18 | 0.16 |
| Aug | 3.53 | 3.43 | 0.10 |
| Sep | 2.95 | 2.94 | 0.01 |
| Oct | 2.67 | 2.68 | -0.01 |
| Nov | 1.21 | 1.10 | 0.11 |
| Dec | 0.86 | 0.88 | -0.02 |
28.27 | 27.94 | 0.33 |