| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.63 | 0.62 | 0.01 |
| Feb | 0.73 | 0.76 | -0.03 |
| Mar | 1.48 | 1.46 | 0.02 |
| Apr | 2.34 | 2.41 | -0.07 |
| May | 4.32 | 4.38 | -0.06 |
| Jun | 3.96 | 3.80 | 0.16 |
| Jul | 4.10 | 4.10 | 0.00 |
| Aug | 3.33 | 3.32 | 0.01 |
| Sep | 2.28 | 2.24 | 0.04 |
| Oct | 1.99 | 2.02 | -0.03 |
| Nov | 1.19 | 1.22 | -0.03 |
| Dec | 0.83 | 0.87 | -0.04 |
27.18 | 27.20 | -0.02 |