| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.50 | 3.36 | 0.14 |
| Feb | 3.09 | 2.92 | 0.17 |
| Mar | 4.09 | 4.00 | 0.09 |
| Apr | 3.30 | 3.33 | -0.03 |
| May | 3.51 | 3.80 | -0.29 |
| Jun | 3.83 | 3.84 | -0.01 |
| Jul | 4.46 | 4.12 | 0.34 |
| Aug | 4.33 | 4.51 | -0.18 |
| Sep | 4.23 | 4.24 | -0.01 |
| Oct | 3.92 | 4.24 | -0.32 |
| Nov | 3.11 | 3.03 | 0.08 |
| Dec | 3.64 | 3.83 | -0.19 |
45.01 | 45.22 | -0.21 |