| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.42 | 1.35 | 0.07 |
| Feb | 1.77 | 1.76 | 0.01 |
| Mar | 2.59 | 2.52 | 0.07 |
| Apr | 3.99 | 3.97 | 0.02 |
| May | 5.54 | 5.57 | -0.03 |
| Jun | 5.25 | 5.41 | -0.16 |
| Jul | 4.52 | 4.68 | -0.16 |
| Aug | 4.17 | 3.95 | 0.22 |
| Sep | 4.13 | 4.13 | 0.00 |
| Oct | 3.27 | 3.30 | -0.03 |
| Nov | 2.38 | 2.31 | 0.07 |
| Dec | 1.72 | 1.65 | 0.07 |
40.75 | 40.60 | 0.15 |