| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.69 | 1.76 | -0.07 |
| Feb | 1.81 | 1.76 | 0.05 |
| Mar | 2.47 | 2.42 | 0.05 |
| Apr | 3.76 | 3.68 | 0.08 |
| May | 4.63 | 4.75 | -0.12 |
| Jun | 5.24 | 5.25 | -0.01 |
| Jul | 4.12 | 4.26 | -0.14 |
| Aug | 4.01 | 3.96 | 0.05 |
| Sep | 3.54 | 3.60 | -0.06 |
| Oct | 2.96 | 2.87 | 0.09 |
| Nov | 2.41 | 2.34 | 0.07 |
| Dec | 2.04 | 2.00 | 0.04 |
38.68 | 38.65 | 0.03 |