| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.64 | 4.04 | -0.40 |
| Feb | 3.22 | 3.56 | -0.34 |
| Mar | 4.72 | 5.19 | -0.47 |
| Apr | 4.24 | 4.59 | -0.35 |
| May | 3.50 | 3.41 | 0.09 |
| Jun | 3.64 | 3.74 | -0.10 |
| Jul | 3.06 | 3.09 | -0.03 |
| Aug | 3.63 | 3.77 | -0.14 |
| Sep | 3.89 | 3.79 | 0.10 |
| Oct | 4.50 | 4.70 | -0.20 |
| Nov | 3.86 | 4.14 | -0.28 |
| Dec | 4.54 | 4.98 | -0.44 |
46.44 | 49.00 | -2.56 |