Modesto, California, United States climate
Average temperatures, precipitation and all-time records for Modesto, California, United States, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is July, averaging a high of 94°F, and its coldest is January, with an average low of 41°F.
Modesto is the county seat of and the largest city in Stanislaus County, California, United States. With a population of 218,069 according to 2022 U.S. Census Bureau estimates, it is the 19th-most populous city in California. via Wikipedia
Modesto average temperatures by month
Typical daily high and low, and average precipitation, for each month in Modesto, California, United States, based on 1980–2026 records. The wettest month is January (0.10 in on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 58°F | 41°F | 0.10 in |
| February | 63°F | 45°F | 0.10 in |
| March | 68°F | 47°F | 0.10 in |
| April | 74°F | 50°F | 0.00 in |
| May | 83°F | 56°F | 0.00 in |
| June | 90°F | 61°F | 0.00 in |
| July | 94°F | 64°F | 0.00 in |
| August | 92°F | 63°F | 0.00 in |
| September | 87°F | 60°F | 0.00 in |
| October | 80°F | 54°F | 0.00 in |
| November | 66°F | 46°F | 0.10 in |
| December | 58°F | 42°F | 0.10 in |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -10°F to 115°F scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 110°F on 2006-07-23
- Coldest day on record: 20°F on 1990-12-22
Percentiles compare each day to Modesto, California, United States's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →