| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.56 | 3.64 | -0.08 |
| Feb | 3.19 | 2.98 | 0.21 |
| Mar | 3.95 | 3.97 | -0.02 |
| Apr | 3.77 | 3.55 | 0.22 |
| May | 3.50 | 3.55 | -0.05 |
| Jun | 4.20 | 4.09 | 0.11 |
| Jul | 3.84 | 3.78 | 0.06 |
| Aug | 4.18 | 4.21 | -0.03 |
| Sep | 3.86 | 3.89 | -0.03 |
| Oct | 3.13 | 3.09 | 0.04 |
| Nov | 3.19 | 3.11 | 0.08 |
| Dec | 3.67 | 3.62 | 0.05 |
44.04 | 43.48 | 0.56 |