| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.61 | 2.54 | 0.07 |
| Feb | 2.08 | 2.12 | -0.04 |
| Mar | 2.73 | 2.75 | -0.02 |
| Apr | 3.87 | 3.93 | -0.06 |
| May | 4.50 | 4.55 | -0.05 |
| Jun | 4.58 | 4.59 | -0.01 |
| Jul | 4.44 | 4.45 | -0.01 |
| Aug | 3.88 | 3.74 | 0.14 |
| Sep | 2.99 | 3.05 | -0.06 |
| Oct | 2.91 | 2.87 | 0.04 |
| Nov | 3.11 | 3.07 | 0.04 |
| Dec | 2.43 | 2.42 | 0.01 |
40.13 | 40.08 | 0.05 |