| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.52 | 3.86 | -0.34 |
| Feb | 2.64 | 2.90 | -0.26 |
| Mar | 2.88 | 3.04 | -0.16 |
| Apr | 3.43 | 3.50 | -0.07 |
| May | 3.66 | 3.78 | -0.12 |
| Jun | 4.00 | 3.91 | 0.09 |
| Jul | 3.66 | 3.71 | -0.05 |
| Aug | 3.77 | 3.83 | -0.06 |
| Sep | 3.66 | 3.75 | -0.09 |
| Oct | 4.57 | 4.81 | -0.24 |
| Nov | 3.71 | 3.91 | -0.20 |
| Dec | 3.72 | 4.08 | -0.36 |
43.22 | 45.08 | -1.86 |