| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.18 | 2.14 | 0.04 |
| Feb | 1.86 | 1.83 | 0.03 |
| Mar | 2.64 | 2.53 | 0.11 |
| Apr | 3.80 | 3.63 | 0.17 |
| May | 4.41 | 4.38 | 0.03 |
| Jun | 4.31 | 4.12 | 0.19 |
| Jul | 4.20 | 3.87 | 0.33 |
| Aug | 3.64 | 3.33 | 0.31 |
| Sep | 3.23 | 3.25 | -0.02 |
| Oct | 3.22 | 3.19 | 0.03 |
| Nov | 2.89 | 2.63 | 0.26 |
| Dec | 2.21 | 2.17 | 0.04 |
38.59 | 37.07 | 1.52 |