| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.59 | -0.08 |
| Feb | 2.82 | 2.87 | -0.05 |
| Mar | 4.22 | 4.13 | 0.09 |
| Apr | 3.62 | 3.63 | -0.01 |
| May | 3.58 | 3.69 | -0.11 |
| Jun | 4.45 | 4.34 | 0.11 |
| Jul | 4.72 | 4.71 | 0.01 |
| Aug | 4.58 | 4.57 | 0.01 |
| Sep | 4.75 | 5.19 | -0.44 |
| Oct | 3.48 | 3.45 | 0.03 |
| Nov | 3.38 | 3.35 | 0.03 |
| Dec | 3.54 | 3.54 | 0.00 |
46.65 | 47.06 | -0.41 |