| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 5.04 | 4.83 | 0.21 |
| Feb | 4.33 | 4.17 | 0.16 |
| Mar | 4.91 | 4.80 | 0.11 |
| Apr | 4.68 | 4.61 | 0.07 |
| May | 4.46 | 4.42 | 0.04 |
| Jun | 4.86 | 4.65 | 0.21 |
| Jul | 4.98 | 5.04 | -0.06 |
| Aug | 5.64 | 5.10 | 0.54 |
| Sep | 4.78 | 4.67 | 0.11 |
| Oct | 4.14 | 4.06 | 0.08 |
| Nov | 4.29 | 4.19 | 0.10 |
| Dec | 5.45 | 5.20 | 0.25 |
57.56 | 55.74 | 1.82 |