| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.44 | 3.30 | 0.14 |
| Feb | 3.26 | 3.23 | 0.03 |
| Mar | 4.00 | 3.90 | 0.10 |
| Apr | 4.21 | 3.98 | 0.23 |
| May | 3.77 | 3.59 | 0.18 |
| Jun | 4.42 | 4.24 | 0.18 |
| Jul | 4.14 | 4.03 | 0.11 |
| Aug | 3.84 | 3.90 | -0.06 |
| Sep | 3.90 | 3.67 | 0.23 |
| Oct | 5.10 | 5.04 | 0.06 |
| Nov | 4.13 | 3.94 | 0.19 |
| Dec | 4.40 | 4.34 | 0.06 |
48.61 | 47.16 | 1.45 |