| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.38 | 0.06 |
| Feb | 3.16 | 2.96 | 0.20 |
| Mar | 3.40 | 3.45 | -0.05 |
| Apr | 3.15 | 3.12 | 0.03 |
| May | 3.28 | 3.00 | 0.28 |
| Jun | 5.46 | 5.51 | -0.05 |
| Jul | 5.71 | 5.54 | 0.17 |
| Aug | 6.37 | 6.75 | -0.38 |
| Sep | 4.72 | 5.01 | -0.29 |
| Oct | 4.04 | 4.41 | -0.37 |
| Nov | 2.43 | 2.45 | -0.02 |
| Dec | 3.08 | 3.26 | -0.18 |
48.24 | 48.84 | -0.60 |