| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.68 | 3.59 | 0.09 |
| Feb | 3.70 | 3.58 | 0.12 |
| Mar | 2.79 | 2.62 | 0.17 |
| Apr | 1.34 | 1.35 | -0.01 |
| May | 0.63 | 0.52 | 0.11 |
| Jun | 0.15 | 0.16 | -0.01 |
| Jul | 0.01 | 0.01 | 0.00 |
| Aug | 0.03 | 0.04 | -0.01 |
| Sep | 0.08 | 0.08 | 0.00 |
| Oct | 0.88 | 0.77 | 0.11 |
| Nov | 1.82 | 1.72 | 0.10 |
| Dec | 3.74 | 3.75 | -0.01 |
18.85 | 18.19 | 0.66 |