| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.16 | 3.13 | 0.03 |
| Feb | 3.06 | 2.86 | 0.20 |
| Mar | 3.99 | 3.63 | 0.36 |
| Apr | 3.91 | 3.87 | 0.04 |
| May | 4.24 | 4.30 | -0.06 |
| Jun | 4.32 | 4.36 | -0.04 |
| Jul | 4.38 | 4.39 | -0.01 |
| Aug | 3.33 | 3.33 | 0.00 |
| Sep | 3.51 | 3.21 | 0.30 |
| Oct | 3.08 | 3.01 | 0.07 |
| Nov | 2.89 | 2.77 | 0.12 |
| Dec | 3.23 | 3.32 | -0.09 |
43.10 | 42.18 | 0.92 |