| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.58 | -0.04 |
| Feb | 3.65 | 3.75 | -0.10 |
| Mar | 4.66 | 4.70 | -0.04 |
| Apr | 5.33 | 5.32 | 0.01 |
| May | 5.14 | 5.22 | -0.08 |
| Jun | 3.42 | 3.45 | -0.03 |
| Jul | 3.86 | 3.74 | 0.12 |
| Aug | 3.82 | 3.71 | 0.11 |
| Sep | 3.55 | 3.41 | 0.14 |
| Oct | 3.65 | 3.79 | -0.14 |
| Nov | 4.74 | 4.69 | 0.05 |
| Dec | 4.53 | 4.50 | 0.03 |
49.89 | 49.86 | 0.03 |