| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.61 | 0.75 | -0.14 |
| Feb | 0.76 | 0.85 | -0.09 |
| Mar | 1.44 | 1.60 | -0.16 |
| Apr | 2.58 | 2.88 | -0.30 |
| May | 3.67 | 4.01 | -0.34 |
| Jun | 4.68 | 4.92 | -0.24 |
| Jul | 3.70 | 3.64 | 0.06 |
| Aug | 3.74 | 4.26 | -0.52 |
| Sep | 3.06 | 3.23 | -0.17 |
| Oct | 2.24 | 2.33 | -0.09 |
| Nov | 1.30 | 1.48 | -0.18 |
| Dec | 0.92 | 1.09 | -0.17 |
28.70 | 31.04 | -2.34 |