| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.69 | 0.80 | -0.11 |
| Feb | 0.80 | 0.88 | -0.08 |
| Mar | 1.44 | 1.57 | -0.13 |
| Apr | 2.76 | 2.89 | -0.13 |
| May | 4.10 | 4.22 | -0.12 |
| Jun | 4.38 | 4.42 | -0.04 |
| Jul | 4.10 | 4.33 | -0.23 |
| Aug | 3.98 | 4.06 | -0.08 |
| Sep | 3.14 | 3.31 | -0.17 |
| Oct | 2.80 | 2.75 | 0.05 |
| Nov | 1.51 | 1.62 | -0.11 |
| Dec | 1.01 | 1.16 | -0.15 |
30.71 | 32.01 | -1.30 |