| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.52 | 1.47 | 0.05 |
| Feb | 1.16 | 1.15 | 0.01 |
| Mar | 1.85 | 1.81 | 0.04 |
| Apr | 3.01 | 3.08 | -0.07 |
| May | 3.53 | 3.47 | 0.06 |
| Jun | 4.00 | 4.14 | -0.14 |
| Jul | 3.61 | 3.64 | -0.03 |
| Aug | 3.40 | 3.41 | -0.01 |
| Sep | 3.27 | 3.19 | 0.08 |
| Oct | 2.90 | 2.79 | 0.11 |
| Nov | 2.08 | 1.97 | 0.11 |
| Dec | 1.75 | 1.68 | 0.07 |
32.08 | 31.80 | 0.28 |