| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.91 | 3.95 | -0.04 |
| Feb | 4.37 | 4.42 | -0.05 |
| Mar | 4.63 | 4.68 | -0.05 |
| Apr | 4.45 | 4.59 | -0.14 |
| May | 5.04 | 5.03 | 0.01 |
| Jun | 4.08 | 4.12 | -0.04 |
| Jul | 3.58 | 3.40 | 0.18 |
| Aug | 2.86 | 2.96 | -0.10 |
| Sep | 3.88 | 3.83 | 0.05 |
| Oct | 4.51 | 4.59 | -0.08 |
| Nov | 4.09 | 4.06 | 0.03 |
| Dec | 4.76 | 4.81 | -0.05 |
50.16 | 50.44 | -0.28 |