| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.73 | 0.70 | 0.03 |
| Feb | 0.77 | 0.75 | 0.02 |
| Mar | 1.46 | 1.44 | 0.02 |
| Apr | 2.54 | 2.55 | -0.01 |
| May | 3.53 | 3.53 | 0.00 |
| Jun | 4.38 | 4.38 | 0.00 |
| Jul | 4.19 | 4.01 | 0.18 |
| Aug | 3.79 | 3.72 | 0.07 |
| Sep | 2.87 | 2.86 | 0.01 |
| Oct | 2.63 | 2.65 | -0.02 |
| Nov | 1.33 | 1.30 | 0.03 |
| Dec | 0.89 | 0.91 | -0.02 |
29.11 | 28.80 | 0.31 |