| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.06 | 3.14 | -0.08 |
| Feb | 2.72 | 2.74 | -0.02 |
| Mar | 3.50 | 3.58 | -0.08 |
| Apr | 3.44 | 3.40 | 0.04 |
| May | 4.21 | 3.98 | 0.23 |
| Jun | 4.43 | 4.46 | -0.03 |
| Jul | 4.12 | 4.25 | -0.13 |
| Aug | 3.59 | 3.29 | 0.30 |
| Sep | 4.00 | 3.92 | 0.08 |
| Oct | 2.97 | 2.73 | 0.24 |
| Nov | 2.89 | 2.85 | 0.04 |
| Dec | 3.08 | 3.20 | -0.12 |
42.01 | 41.54 | 0.47 |