| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.63 | 3.66 | -0.03 |
| Feb | 3.06 | 2.98 | 0.08 |
| Mar | 4.09 | 4.14 | -0.05 |
| Apr | 3.66 | 3.69 | -0.03 |
| May | 3.60 | 3.61 | -0.01 |
| Jun | 4.18 | 4.24 | -0.06 |
| Jul | 4.62 | 4.49 | 0.13 |
| Aug | 4.40 | 4.41 | -0.01 |
| Sep | 5.00 | 5.07 | -0.07 |
| Oct | 3.37 | 3.43 | -0.06 |
| Nov | 3.30 | 3.38 | -0.08 |
| Dec | 3.61 | 3.50 | 0.11 |
46.52 | 46.60 | -0.08 |