| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.59 | 3.67 | -0.08 |
| Feb | 3.97 | 3.88 | 0.09 |
| Mar | 4.42 | 4.55 | -0.13 |
| Apr | 4.18 | 4.12 | 0.06 |
| May | 4.66 | 4.92 | -0.26 |
| Jun | 3.91 | 3.97 | -0.06 |
| Jul | 2.99 | 3.05 | -0.06 |
| Aug | 2.81 | 2.70 | 0.11 |
| Sep | 3.76 | 3.52 | 0.24 |
| Oct | 4.52 | 4.61 | -0.09 |
| Nov | 3.80 | 3.76 | 0.04 |
| Dec | 4.53 | 4.61 | -0.08 |
47.14 | 47.36 | -0.22 |