| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.66 | 0.07 |
| Feb | 0.78 | 0.80 | -0.02 |
| Mar | 1.49 | 1.42 | 0.07 |
| Apr | 2.60 | 2.61 | -0.01 |
| May | 3.85 | 3.79 | 0.06 |
| Jun | 4.27 | 4.26 | 0.01 |
| Jul | 4.24 | 4.33 | -0.09 |
| Aug | 3.97 | 4.02 | -0.05 |
| Sep | 3.18 | 3.01 | 0.17 |
| Oct | 2.79 | 2.76 | 0.03 |
| Nov | 1.51 | 1.46 | 0.05 |
| Dec | 0.97 | 1.02 | -0.05 |
30.38 | 30.14 | 0.24 |