| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.98 | 4.00 | -0.02 |
| Feb | 2.98 | 3.05 | -0.07 |
| Mar | 3.59 | 3.54 | 0.05 |
| Apr | 4.09 | 4.16 | -0.07 |
| May | 5.08 | 5.19 | -0.11 |
| Jun | 5.42 | 5.48 | -0.06 |
| Jul | 4.08 | 4.18 | -0.10 |
| Aug | 4.76 | 5.08 | -0.32 |
| Sep | 4.95 | 5.20 | -0.25 |
| Oct | 4.89 | 4.73 | 0.16 |
| Nov | 4.33 | 4.44 | -0.11 |
| Dec | 3.93 | 4.07 | -0.14 |
52.08 | 53.12 | -1.04 |