| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.04 | 3.88 | 0.16 |
| Feb | 3.23 | 3.11 | 0.12 |
| Mar | 4.19 | 4.13 | 0.06 |
| Apr | 4.40 | 4.26 | 0.14 |
| May | 4.71 | 4.60 | 0.11 |
| Jun | 4.91 | 4.72 | 0.19 |
| Jul | 5.08 | 5.14 | -0.06 |
| Aug | 5.06 | 4.65 | 0.41 |
| Sep | 4.48 | 4.26 | 0.22 |
| Oct | 3.59 | 3.40 | 0.19 |
| Nov | 3.46 | 3.37 | 0.09 |
| Dec | 4.23 | 4.11 | 0.12 |
51.38 | 49.63 | 1.75 |