| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.30 | 0.20 |
| Feb | 3.00 | 2.83 | 0.17 |
| Mar | 3.75 | 3.45 | 0.30 |
| Apr | 3.81 | 3.59 | 0.22 |
| May | 3.77 | 3.50 | 0.27 |
| Jun | 3.82 | 3.58 | 0.24 |
| Jul | 4.54 | 3.85 | 0.69 |
| Aug | 3.99 | 3.71 | 0.28 |
| Sep | 3.69 | 3.65 | 0.04 |
| Oct | 2.84 | 2.65 | 0.19 |
| Nov | 3.09 | 2.93 | 0.16 |
| Dec | 3.48 | 3.35 | 0.13 |
43.28 | 40.39 | 2.89 |