| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.66 | 0.69 | -0.03 |
| Feb | 0.79 | 0.80 | -0.01 |
| Mar | 1.43 | 1.50 | -0.07 |
| Apr | 2.85 | 2.93 | -0.08 |
| May | 3.83 | 3.74 | 0.09 |
| Jun | 4.73 | 4.64 | 0.09 |
| Jul | 3.45 | 3.48 | -0.03 |
| Aug | 3.09 | 3.38 | -0.29 |
| Sep | 3.11 | 3.04 | 0.07 |
| Oct | 2.25 | 2.24 | 0.01 |
| Nov | 1.29 | 1.41 | -0.12 |
| Dec | 0.86 | 0.94 | -0.08 |
28.34 | 28.79 | -0.45 |