| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.72 | 2.69 | 0.03 |
| Feb | 2.30 | 2.25 | 0.05 |
| Mar | 3.25 | 3.20 | 0.05 |
| Apr | 4.00 | 4.04 | -0.04 |
| May | 4.46 | 4.32 | 0.14 |
| Jun | 4.75 | 4.57 | 0.18 |
| Jul | 4.13 | 4.18 | -0.05 |
| Aug | 3.62 | 3.61 | 0.01 |
| Sep | 3.04 | 3.11 | -0.07 |
| Oct | 3.07 | 3.02 | 0.05 |
| Nov | 3.26 | 3.19 | 0.07 |
| Dec | 2.67 | 2.60 | 0.07 |
41.27 | 40.78 | 0.49 |