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> Usa > Oklahoma City, Oklahoma > Precipitation
Rainfall/ Precipitation in Oklahoma City, Oklahoma, Usa
- Oklahoma City, Oklahoma receives 847.3 mm (33.4 in) of rainfall per year, or 70.6 mm (2.8 in) per month.
- On average there are 82 days per year with more than 0.1 mm (0.004 in) of rainfall (precipitation) or 6.8 days with a quantity of rain, sleet, snow etc. per month.
- The driest weather is in January when an average of 28.7 mm (1.1 in) of rainfall (precipitation) occurs.
- The wettest weather is in May when an average of 132.6 mm (5.2 in) of rainfall (precipitation) occurs.
Precipitation Table
| Climate Variable | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Annual | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Average Precipitation mm (in) | 28.7 (1.13) | 39.6 (1.6) | 68.8 (2.7) | 70.4 (2.8) | 132.6 (5.2) | 109.5 (4.3) | 66.3 (2.6) | 66 (2.6) | 97.5 (3.8) | 82 (3.2) | 50.3 (2) | 35.6 (1.4) | 847.3 (33.4) | |
 | Precipitation Litres/m² (Gallons/ft²) | 28.7 (0.7) | 39.6 (0.97) | 68.8 (1.69) | 70.4 (1.73) | 132.6 (3.25) | 109.5 (2.69) | 66.3 (1.63) | 66 (1.62) | 97.5 (2.39) | 82 (2.01) | 50.3 (1.23) | 35.6 (0.87) | 847.3 (20.78) | |
 | Number of Wet Days (probability of rain on a day) | 6 (19%) | 7 (25%) | 7 (23%) | 8 (27%) | 10 (32%) | 9 (30%) | 6 (19%) | 6 (19%) | 6 (20%) | 6 (19%) | 5 (17%) | 6 (19%) | 82 (22%) | |
 | Percentage of Sunny (Cloudy) Daylight Hours | 53 (47) | 55 (45) | 63 (37) | 60 (40) | 64 (36) | 75 (25) | 75 (25) | 82 (18) | 77 (23) | 71 (29) | 68 (32) | 62 (38) | 69 (31) |