| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.77 | 3.72 | 0.05 |
| Feb | 4.42 | 4.39 | 0.03 |
| Mar | 4.70 | 4.67 | 0.03 |
| Apr | 5.03 | 5.09 | -0.06 |
| May | 5.30 | 5.45 | -0.15 |
| Jun | 4.42 | 4.25 | 0.17 |
| Jul | 4.44 | 4.50 | -0.06 |
| Aug | 3.66 | 3.30 | 0.36 |
| Sep | 3.50 | 3.66 | -0.16 |
| Oct | 3.93 | 3.89 | 0.04 |
| Nov | 3.89 | 3.76 | 0.13 |
| Dec | 4.74 | 4.62 | 0.12 |
51.80 | 51.30 | 0.50 |