| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.15 | 3.14 | 0.01 |
| Feb | 3.02 | 2.88 | 0.14 |
| Mar | 3.99 | 3.68 | 0.31 |
| Apr | 3.90 | 3.91 | -0.01 |
| May | 4.25 | 4.28 | -0.03 |
| Jun | 4.30 | 4.37 | -0.07 |
| Jul | 4.33 | 4.40 | -0.07 |
| Aug | 3.38 | 3.40 | -0.02 |
| Sep | 3.52 | 3.23 | 0.29 |
| Oct | 3.06 | 3.04 | 0.02 |
| Nov | 2.86 | 2.80 | 0.06 |
| Dec | 3.20 | 3.33 | -0.13 |
42.96 | 42.46 | 0.50 |