| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) |
|---|---|---|---|
| Jan | 0.59 | 0.63 | -0.04 |
| Feb | 0.77 | 0.74 | 0.03 |
| Mar | 1.45 | 1.44 | 0.01 |
| Apr | 2.23 | 2.27 | -0.04 |
| May | 2.64 | 2.59 | 0.05 |
| Jun | 1.80 | 1.73 | 0.07 |
| Jul | 1.98 | 1.80 | 0.18 |
| Aug | 1.73 | 1.56 | 0.17 |
| Sep | 1.35 | 1.28 | 0.07 |
| Oct | 1.14 | 1.20 | -0.06 |
| Nov | 0.93 | 0.88 | 0.05 |
| Dec | 0.54 | 0.58 | -0.04 |
17.15 | 16.70 | 0.45 |