Mission Viejo, CA All-Time Weather Extremes
The most extreme temperature, precipitation, and snowfall ever recorded in Mission Viejo, from NOAA daily weather observations.
| Temperature | ||
|---|---|---|
| Record High | 102°F (39°C) | June 15, 1981 |
| Record Low | 30°F (-1°C) | January 5, 1971 and January 6, 1971 and January 29, 1979 |
| Lowest High | 48.9°F (9°C) | December 22, 1990 |
| Highest Low | 78°F (26°C) | September 3, 1998 |
| Highest Mean | 86.0°F (30°C) | September 4, 2022 |
| Lowest Mean | 41.4°F (5°C) | December 22, 1990 |
| Precipitation | ||
| Max in One Calendar Day | 6.00" (152.4 mm) | December 6, 1997 |
| Max in One Month | 11.24" (285.6 mm) | February 1998 |
| Least in One Month | 0.00" (0.0 mm) | September 1979 |
| Max in One Year | 27.90" (708.6 mm) | 1978 |
| Least in One Year | 2.45" (62.3 mm) | 2013 |
| Period of Record | ||
| Temperature | January 1, 1970 – June 30, 2026 | |
| Precipitation | January 1, 1970 – June 30, 2026 | |
| Snowfall | January 1, 1970 – December 30, 2010 | |
Note: Records compiled from NOAA GHCN-Daily observations at NEWPORT BEACH HARBOR (13 mi from Mission Viejo, CA). Quality-flagged readings are excluded. Monthly and annual totals require substantially complete reporting for “least” records.
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Frequently Asked Questions
What is the hottest temperature ever recorded in Mission Viejo, CA?
The all-time record high in Mission Viejo, CA is 102°F (39°C), set on June 15, 1981.
What is the coldest temperature ever recorded in Mission Viejo, CA?
The all-time record low in Mission Viejo, CA is 30°F (-1°C), set on January 5, 1971 and January 6, 1971 and January 29, 1979.
What is the most rain Mission Viejo, CA has ever had in one day?
The most precipitation recorded in one calendar day near Mission Viejo, CA is 6.00 inches, on December 6, 1997.
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Mission Viejo Weather History
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