| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.32 | 3.27 | 0.05 |
| Feb | 2.80 | 2.84 | -0.04 |
| Mar | 4.16 | 4.30 | -0.14 |
| Apr | 3.78 | 3.65 | 0.13 |
| May | 4.06 | 4.28 | -0.22 |
| Jun | 4.52 | 4.26 | 0.26 |
| Jul | 4.73 | 4.67 | 0.06 |
| Aug | 4.30 | 4.12 | 0.18 |
| Sep | 4.87 | 4.80 | 0.07 |
| Oct | 4.26 | 4.54 | -0.28 |
| Nov | 3.46 | 3.45 | 0.01 |
| Dec | 3.88 | 4.07 | -0.19 |
48.14 | 48.25 | -0.11 |