| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.74 | 2.64 | 0.10 |
| Feb | 2.05 | 2.01 | 0.04 |
| Mar | 3.02 | 2.87 | 0.15 |
| Apr | 3.02 | 2.96 | 0.06 |
| May | 4.28 | 4.29 | -0.01 |
| Jun | 3.81 | 3.91 | -0.10 |
| Jul | 2.29 | 2.58 | -0.29 |
| Aug | 2.86 | 3.12 | -0.26 |
| Sep | 3.54 | 3.61 | -0.07 |
| Oct | 4.03 | 4.11 | -0.08 |
| Nov | 2.99 | 2.93 | 0.06 |
| Dec | 2.69 | 2.59 | 0.10 |
37.32 | 37.62 | -0.30 |