| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.71 | 0.68 | 0.03 |
| Feb | 0.80 | 0.75 | 0.05 |
| Mar | 1.47 | 1.46 | 0.01 |
| Apr | 2.60 | 2.54 | 0.06 |
| May | 3.58 | 3.67 | -0.09 |
| Jun | 4.29 | 4.30 | -0.01 |
| Jul | 3.87 | 3.89 | -0.02 |
| Aug | 3.92 | 3.92 | 0.00 |
| Sep | 2.96 | 3.03 | -0.07 |
| Oct | 2.41 | 2.42 | -0.01 |
| Nov | 1.36 | 1.22 | 0.14 |
| Dec | 0.91 | 0.88 | 0.03 |
28.88 | 28.76 | 0.12 |