| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 1.34 | 1.30 | 0.04 |
| Feb | 1.60 | 1.54 | 0.06 |
| Mar | 2.32 | 2.22 | 0.10 |
| Apr | 2.55 | 2.63 | -0.08 |
| May | 4.06 | 3.97 | 0.09 |
| Jun | 3.58 | 3.61 | -0.03 |
| Jul | 2.41 | 2.25 | 0.16 |
| Aug | 2.32 | 2.32 | 0.00 |
| Sep | 3.11 | 2.92 | 0.19 |
| Oct | 3.24 | 3.10 | 0.14 |
| Nov | 1.88 | 1.90 | -0.02 |
| Dec | 1.66 | 1.65 | 0.01 |
30.07 | 29.41 | 0.66 |