| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.21 | 2.16 | 0.05 |
| Feb | 1.91 | 1.91 | 0.00 |
| Mar | 2.68 | 2.61 | 0.07 |
| Apr | 3.22 | 3.30 | -0.08 |
| May | 3.24 | 3.15 | 0.09 |
| Jun | 3.93 | 3.62 | 0.31 |
| Jul | 3.89 | 3.85 | 0.04 |
| Aug | 3.60 | 3.61 | -0.01 |
| Sep | 3.79 | 3.75 | 0.04 |
| Oct | 3.61 | 3.72 | -0.11 |
| Nov | 2.77 | 2.80 | -0.03 |
| Dec | 2.69 | 2.53 | 0.16 |
37.54 | 37.01 | 0.53 |