| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.62 | 3.65 | -0.03 |
| Feb | 2.88 | 2.81 | 0.07 |
| Mar | 3.99 | 3.95 | 0.04 |
| Apr | 3.36 | 3.54 | -0.18 |
| May | 3.91 | 3.89 | 0.02 |
| Jun | 4.50 | 4.60 | -0.10 |
| Jul | 5.35 | 5.28 | 0.07 |
| Aug | 5.25 | 5.34 | -0.09 |
| Sep | 5.40 | 5.38 | 0.02 |
| Oct | 3.81 | 4.00 | -0.19 |
| Nov | 3.24 | 3.20 | 0.04 |
| Dec | 3.44 | 3.56 | -0.12 |
48.75 | 49.20 | -0.45 |