| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.44 | 1.50 | -0.06 |
| Feb | 1.50 | 1.56 | -0.06 |
| Mar | 2.19 | 2.17 | 0.02 |
| Apr | 3.77 | 3.90 | -0.13 |
| May | 4.24 | 4.41 | -0.17 |
| Jun | 5.49 | 5.46 | 0.03 |
| Jul | 4.61 | 4.48 | 0.13 |
| Aug | 4.16 | 4.22 | -0.06 |
| Sep | 3.65 | 3.51 | 0.14 |
| Oct | 2.90 | 2.89 | 0.01 |
| Nov | 2.26 | 2.26 | 0.00 |
| Dec | 1.67 | 1.75 | -0.08 |
37.88 | 38.11 | -0.23 |