| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.76 | 4.00 | -0.24 |
| Feb | 3.38 | 3.55 | -0.17 |
| Mar | 4.86 | 5.19 | -0.33 |
| Apr | 4.27 | 4.54 | -0.27 |
| May | 3.40 | 3.24 | 0.16 |
| Jun | 3.57 | 3.58 | -0.01 |
| Jul | 3.10 | 3.06 | 0.04 |
| Aug | 3.63 | 3.36 | 0.27 |
| Sep | 3.83 | 3.51 | 0.32 |
| Oct | 4.43 | 4.27 | 0.16 |
| Nov | 3.98 | 3.86 | 0.12 |
| Dec | 4.59 | 4.86 | -0.27 |
46.80 | 47.02 | -0.22 |