| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.57 | 3.61 | -0.04 |
| Feb | 3.30 | 3.31 | -0.01 |
| Mar | 4.29 | 4.28 | 0.01 |
| Apr | 4.35 | 4.12 | 0.23 |
| May | 3.73 | 3.71 | 0.02 |
| Jun | 4.28 | 4.17 | 0.11 |
| Jul | 3.77 | 3.77 | 0.00 |
| Aug | 3.93 | 4.01 | -0.08 |
| Sep | 4.24 | 3.94 | 0.30 |
| Oct | 4.95 | 5.01 | -0.06 |
| Nov | 3.92 | 3.74 | 0.18 |
| Dec | 4.24 | 4.74 | -0.50 |
48.57 | 48.41 | 0.16 |