| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.10 | 3.19 | -0.09 |
| Feb | 2.48 | 2.46 | 0.02 |
| Mar | 3.57 | 3.50 | 0.07 |
| Apr | 4.42 | 4.34 | 0.08 |
| May | 4.52 | 4.53 | -0.01 |
| Jun | 4.76 | 4.61 | 0.15 |
| Jul | 4.06 | 3.86 | 0.20 |
| Aug | 3.21 | 2.93 | 0.28 |
| Sep | 3.02 | 3.00 | 0.02 |
| Oct | 3.11 | 3.08 | 0.03 |
| Nov | 3.02 | 2.99 | 0.03 |
| Dec | 3.23 | 3.23 | 0.00 |
42.50 | 41.72 | 0.78 |