| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 3.51 | 3.51 | 0.00 |
| Feb | 2.80 | 2.73 | 0.07 |
| Mar | 4.02 | 4.02 | 0.00 |
| Apr | 3.44 | 3.54 | -0.10 |
| May | 3.94 | 3.98 | -0.04 |
| Jun | 4.46 | 4.57 | -0.11 |
| Jul | 5.05 | 4.91 | 0.14 |
| Aug | 4.74 | 4.92 | -0.18 |
| Sep | 5.01 | 4.94 | 0.07 |
| Oct | 3.68 | 3.75 | -0.07 |
| Nov | 3.19 | 3.16 | 0.03 |
| Dec | 3.66 | 3.58 | 0.08 |
47.50 | 47.61 | -0.11 |