| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.24 | 4.20 | 0.04 |
| Feb | 4.66 | 4.62 | 0.04 |
| Mar | 5.03 | 4.96 | 0.07 |
| Apr | 4.92 | 4.82 | 0.10 |
| May | 5.04 | 5.26 | -0.22 |
| Jun | 4.30 | 4.27 | 0.03 |
| Jul | 4.47 | 4.47 | 0.00 |
| Aug | 3.71 | 3.54 | 0.17 |
| Sep | 3.92 | 3.88 | 0.04 |
| Oct | 3.52 | 3.46 | 0.06 |
| Nov | 3.74 | 3.80 | -0.06 |
| Dec | 4.90 | 4.93 | -0.03 |
52.45 | 52.21 | 0.24 |