| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 2.86 | 2.86 | 0.00 |
| Feb | 3.08 | 2.88 | 0.20 |
| Mar | 3.73 | 3.54 | 0.19 |
| Apr | 3.66 | 3.63 | 0.03 |
| May | 4.42 | 4.38 | 0.04 |
| Jun | 3.79 | 3.83 | -0.04 |
| Jul | 1.95 | 1.86 | 0.09 |
| Aug | 2.50 | 2.58 | -0.08 |
| Sep | 3.09 | 3.03 | 0.06 |
| Oct | 4.80 | 4.70 | 0.10 |
| Nov | 3.09 | 3.06 | 0.03 |
| Dec | 3.44 | 3.28 | 0.16 |
40.41 | 39.63 | 0.78 |