| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.99 | 3.98 | 0.01 |
| Feb | 3.75 | 3.74 | 0.01 |
| Mar | 4.39 | 4.39 | 0.00 |
| Apr | 3.25 | 3.28 | -0.03 |
| May | 3.37 | 3.36 | 0.01 |
| Jun | 4.14 | 4.06 | 0.08 |
| Jul | 3.73 | 3.70 | 0.03 |
| Aug | 4.09 | 4.12 | -0.03 |
| Sep | 3.53 | 3.58 | -0.05 |
| Oct | 3.21 | 3.20 | 0.01 |
| Nov | 3.44 | 3.55 | -0.11 |
| Dec | 4.33 | 4.34 | -0.01 |
45.22 | 45.30 | -0.08 |