| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.56 | 0.58 | -0.02 |
| Feb | 0.70 | 0.74 | -0.04 |
| Mar | 1.41 | 1.41 | 0.00 |
| Apr | 2.68 | 2.75 | -0.07 |
| May | 4.58 | 4.67 | -0.09 |
| Jun | 4.07 | 3.93 | 0.14 |
| Jul | 3.60 | 3.55 | 0.05 |
| Aug | 3.33 | 3.48 | -0.15 |
| Sep | 2.14 | 2.19 | -0.05 |
| Oct | 2.17 | 2.11 | 0.06 |
| Nov | 1.23 | 1.19 | 0.04 |
| Dec | 0.85 | 0.90 | -0.05 |
27.32 | 27.50 | -0.18 |