| Month | NOAA Normals (in) | PRISM Normals (in) | Diff (in) | 
|---|---|---|---|
| Jan | 3.11 | 3.34 | -0.23 | 
| Feb | 2.88 | 3.01 | -0.13 | 
| Mar | 3.80 | 3.99 | -0.19 | 
| Apr | 4.36 | 4.53 | -0.17 | 
| May | 4.76 | 4.92 | -0.16 | 
| Jun | 4.60 | 4.62 | -0.02 | 
| Jul | 4.22 | 4.42 | -0.20 | 
| Aug | 3.38 | 3.41 | -0.03 | 
| Sep | 3.05 | 3.20 | -0.15 | 
| Oct | 3.11 | 3.18 | -0.07 | 
| Nov | 2.98 | 3.16 | -0.18 | 
| Dec | 3.38 | 3.62 | -0.24 | 
| 43.63 | 45.40 | -1.77 |