| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.48 | 3.59 | -0.11 |
| Feb | 2.91 | 2.94 | -0.03 |
| Mar | 4.13 | 4.21 | -0.08 |
| Apr | 3.81 | 3.89 | -0.08 |
| May | 4.04 | 4.01 | 0.03 |
| Jun | 4.44 | 4.58 | -0.14 |
| Jul | 4.81 | 4.85 | -0.04 |
| Aug | 4.38 | 4.42 | -0.04 |
| Sep | 4.23 | 4.35 | -0.12 |
| Oct | 4.26 | 4.26 | 0.00 |
| Nov | 3.40 | 3.43 | -0.03 |
| Dec | 4.34 | 4.36 | -0.02 |
48.23 | 48.89 | -0.66 |