| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.64 | 0.65 | -0.01 |
| Feb | 0.83 | 0.85 | -0.02 |
| Mar | 1.44 | 1.43 | 0.01 |
| Apr | 2.51 | 2.46 | 0.05 |
| May | 4.20 | 4.26 | -0.06 |
| Jun | 3.69 | 3.80 | -0.11 |
| Jul | 4.45 | 4.50 | -0.05 |
| Aug | 3.54 | 3.42 | 0.12 |
| Sep | 2.50 | 2.55 | -0.05 |
| Oct | 1.91 | 1.92 | -0.01 |
| Nov | 1.15 | 1.21 | -0.06 |
| Dec | 0.99 | 1.00 | -0.01 |
27.85 | 28.05 | -0.20 |