| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.82 | 3.79 | 0.03 |
| Feb | 4.26 | 4.25 | 0.01 |
| Mar | 5.21 | 5.18 | 0.03 |
| Apr | 5.66 | 5.62 | 0.04 |
| May | 5.76 | 5.55 | 0.21 |
| Jun | 3.88 | 3.88 | 0.00 |
| Jul | 4.01 | 3.96 | 0.05 |
| Aug | 3.64 | 3.36 | 0.28 |
| Sep | 3.43 | 3.60 | -0.17 |
| Oct | 4.53 | 4.55 | -0.02 |
| Nov | 4.89 | 5.08 | -0.19 |
| Dec | 5.06 | 5.14 | -0.08 |
54.15 | 53.96 | 0.19 |