| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.58 | 3.77 | -0.19 |
| Feb | 3.03 | 3.19 | -0.16 |
| Mar | 3.73 | 4.01 | -0.28 |
| Apr | 3.41 | 3.57 | -0.16 |
| May | 3.58 | 3.43 | 0.15 |
| Jun | 4.00 | 4.14 | -0.14 |
| Jul | 3.75 | 3.93 | -0.18 |
| Aug | 4.08 | 4.23 | -0.15 |
| Sep | 3.61 | 3.90 | -0.29 |
| Oct | 3.08 | 3.23 | -0.15 |
| Nov | 3.13 | 3.30 | -0.17 |
| Dec | 3.45 | 3.78 | -0.33 |
42.43 | 44.48 | -2.05 |