| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.21 | 1.31 | -0.10 |
| Feb | 1.20 | 1.26 | -0.06 |
| Mar | 2.08 | 2.06 | 0.02 |
| Apr | 3.83 | 3.97 | -0.14 |
| May | 4.51 | 4.50 | 0.01 |
| Jun | 5.42 | 5.41 | 0.01 |
| Jul | 4.53 | 4.54 | -0.01 |
| Aug | 4.42 | 4.36 | 0.06 |
| Sep | 3.74 | 3.71 | 0.03 |
| Oct | 2.90 | 2.74 | 0.16 |
| Nov | 2.06 | 2.03 | 0.03 |
| Dec | 1.51 | 1.60 | -0.09 |
37.41 | 37.49 | -0.08 |