| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.45 | 3.23 | 0.22 |
| Feb | 2.72 | 2.61 | 0.11 |
| Mar | 3.40 | 3.30 | 0.10 |
| Apr | 4.00 | 3.82 | 0.18 |
| May | 4.07 | 4.02 | 0.05 |
| Jun | 4.59 | 4.38 | 0.21 |
| Jul | 4.36 | 4.05 | 0.31 |
| Aug | 4.01 | 3.93 | 0.08 |
| Sep | 4.11 | 4.13 | -0.02 |
| Oct | 3.82 | 3.68 | 0.14 |
| Nov | 3.60 | 3.54 | 0.06 |
| Dec | 3.55 | 3.50 | 0.05 |
45.68 | 44.19 | 1.49 |