| 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 | 3.67 | 0.32 |
| Apr | 3.90 | 3.90 | 0.00 |
| May | 4.25 | 4.29 | -0.04 |
| Jun | 4.30 | 4.37 | -0.07 |
| Jul | 4.33 | 4.40 | -0.07 |
| Aug | 3.38 | 3.39 | -0.01 |
| Sep | 3.52 | 3.23 | 0.29 |
| Oct | 3.06 | 3.03 | 0.03 |
| Nov | 2.86 | 2.80 | 0.06 |
| Dec | 3.20 | 3.34 | -0.14 |
42.96 | 42.44 | 0.52 |