| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.54 | 3.53 | 0.01 |
| Feb | 3.09 | 2.88 | 0.21 |
| Mar | 4.03 | 4.01 | 0.02 |
| Apr | 3.66 | 3.63 | 0.03 |
| May | 3.61 | 3.60 | 0.01 |
| Jun | 4.29 | 4.34 | -0.05 |
| Jul | 5.12 | 5.12 | 0.00 |
| Aug | 5.23 | 5.22 | 0.01 |
| Sep | 5.57 | 5.66 | -0.09 |
| Oct | 3.29 | 3.29 | 0.00 |
| Nov | 3.28 | 3.34 | -0.06 |
| Dec | 3.49 | 3.45 | 0.04 |
48.20 | 48.07 | 0.13 |