| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.31 | 3.54 | -0.23 |
| Feb | 2.80 | 2.95 | -0.15 |
| Mar | 4.00 | 4.12 | -0.12 |
| Apr | 3.95 | 4.07 | -0.12 |
| May | 3.83 | 3.89 | -0.06 |
| Jun | 4.35 | 4.59 | -0.24 |
| Jul | 4.51 | 4.50 | 0.01 |
| Aug | 4.48 | 4.60 | -0.12 |
| Sep | 4.30 | 4.31 | -0.01 |
| Oct | 4.29 | 4.32 | -0.03 |
| Nov | 3.56 | 3.59 | -0.03 |
| Dec | 4.20 | 4.38 | -0.18 |
47.58 | 48.86 | -1.28 |