| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.57 | -0.06 |
| Feb | 2.81 | 2.81 | 0.00 |
| Mar | 4.11 | 4.15 | -0.04 |
| Apr | 3.75 | 3.84 | -0.09 |
| May | 4.09 | 4.01 | 0.08 |
| Jun | 4.44 | 4.48 | -0.04 |
| Jul | 4.98 | 4.96 | 0.02 |
| Aug | 4.45 | 4.50 | -0.05 |
| Sep | 4.29 | 4.19 | 0.10 |
| Oct | 4.23 | 4.17 | 0.06 |
| Nov | 3.26 | 3.33 | -0.07 |
| Dec | 4.24 | 4.29 | -0.05 |
48.16 | 48.30 | -0.14 |