| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.23 | 3.13 | 0.10 |
| Feb | 2.76 | 2.70 | 0.06 |
| Mar | 3.26 | 3.17 | 0.09 |
| Apr | 3.74 | 3.37 | 0.37 |
| May | 3.72 | 3.68 | 0.04 |
| Jun | 4.39 | 4.30 | 0.09 |
| Jul | 4.33 | 4.11 | 0.22 |
| Aug | 4.10 | 3.98 | 0.12 |
| Sep | 3.71 | 3.66 | 0.05 |
| Oct | 4.74 | 4.79 | -0.05 |
| Nov | 3.45 | 3.33 | 0.12 |
| Dec | 3.87 | 3.88 | -0.01 |
45.30 | 44.10 | 1.20 |