| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.57 | -0.05 |
| Feb | 2.96 | 2.97 | -0.01 |
| Mar | 4.14 | 4.08 | 0.06 |
| Apr | 3.66 | 3.67 | -0.01 |
| May | 3.73 | 3.65 | 0.08 |
| Jun | 4.36 | 4.32 | 0.04 |
| Jul | 4.75 | 4.73 | 0.02 |
| Aug | 4.60 | 4.57 | 0.03 |
| Sep | 4.87 | 5.21 | -0.34 |
| Oct | 3.51 | 3.55 | -0.04 |
| Nov | 3.33 | 3.33 | 0.00 |
| Dec | 3.54 | 3.51 | 0.03 |
46.97 | 47.16 | -0.19 |