| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 4.22 | 4.17 | 0.05 |
| Feb | 3.47 | 3.42 | 0.05 |
| Mar | 4.17 | 3.98 | 0.19 |
| Apr | 4.23 | 4.20 | 0.03 |
| May | 4.10 | 4.19 | -0.09 |
| Jun | 4.40 | 4.58 | -0.18 |
| Jul | 4.45 | 4.61 | -0.16 |
| Aug | 4.55 | 4.88 | -0.33 |
| Sep | 4.26 | 4.26 | 0.00 |
| Oct | 3.47 | 3.34 | 0.13 |
| Nov | 3.72 | 3.54 | 0.18 |
| Dec | 4.16 | 4.27 | -0.11 |
49.20 | 49.44 | -0.24 |