| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.37 | 3.53 | -0.16 |
| Feb | 3.39 | 3.45 | -0.06 |
| Mar | 4.50 | 4.48 | 0.02 |
| Apr | 4.93 | 4.88 | 0.05 |
| May | 5.12 | 5.08 | 0.04 |
| Jun | 4.56 | 4.54 | 0.02 |
| Jul | 4.15 | 4.11 | 0.04 |
| Aug | 3.68 | 3.35 | 0.33 |
| Sep | 3.67 | 3.80 | -0.13 |
| Oct | 3.72 | 3.59 | 0.13 |
| Nov | 3.56 | 3.67 | -0.11 |
| Dec | 4.11 | 4.35 | -0.24 |
48.76 | 48.83 | -0.07 |