| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.76 | -0.18 |
| Feb | 3.05 | 3.19 | -0.14 |
| Mar | 3.77 | 4.03 | -0.26 |
| Apr | 3.50 | 3.60 | -0.10 |
| May | 3.60 | 3.39 | 0.21 |
| Jun | 4.06 | 4.12 | -0.06 |
| Jul | 3.76 | 3.92 | -0.16 |
| Aug | 4.06 | 4.23 | -0.17 |
| Sep | 3.68 | 3.91 | -0.23 |
| Oct | 3.14 | 3.27 | -0.13 |
| Nov | 3.19 | 3.30 | -0.11 |
| Dec | 3.48 | 3.76 | -0.28 |
42.87 | 44.48 | -1.61 |