Santa Rosa, California, United States weather records
Record high and low temperatures for Santa Rosa, California, United States, by month, by season, and all-time, with the dates they occurred, across 1981–2026 of daily climate history. Its hottest day on record reached 114°F on 2022-09-06; its coldest fell to 21°F on 1990-12-22.
Records by month
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have ever been in each calendar month, so each column shows its record high and its record low. Tap a month for its full averages and typical range.
| Month | Daytime high | Overnight low |
|---|---|---|
| January | 73°F2021-01-17
39°F1993-01-05
|
55°F1997-01-01
24°F1997-01-13
|
| February | 75°F2018-02-09
39°F1994-02-19
|
55°F1986-02-17
22°F1989-02-06
|
| March | 86°F2026-03-20
43°F1985-03-05
|
58°F2026-03-20
28°F2002-03-08
|
| April | 88°F1981-04-30
44°F1982-04-01
|
60°F1981-04-30
28°F1999-04-09
|
| May | 102°F2021-05-31
51°F2011-05-16
|
66°F2000-05-23
35°F2010-05-11
|
| June | 107°F2021-06-18
54°F1988-06-06
|
69°F2017-06-18
40°F1999-06-07
|
| July | 111°F1988-07-17
70°F1983-07-01
|
76°F2006-07-22
46°F1982-07-04
|
| August | 111°F1990-08-06
69°F2000-08-30
|
77°F2020-08-16
48°F2010-08-30
|
| September | 114°F2022-09-06
60°F1986-09-26
|
78°F2022-09-06
45°F2019-09-29
|
| October | 105°F2024-10-01
53°F2003-10-31
|
69°F2024-10-02
36°F1984-10-17
|
| November | 87°F2020-11-02
42°F2019-11-30
|
57°F1991-11-06
25°F1985-11-13
|
| December | 72°F1989-12-04
37°F2007-12-28
|
56°F1996-12-31
21°F1990-12-22
|
Records by season
The warmest (▲) and coldest (▼) both the daytime high and the overnight low have reached in each meteorological season (Northern Hemisphere, each a three-month span).
| Season | Daytime high | Overnight low |
|---|---|---|
| Winter (Dec–Feb) | 75°F2018-02-09
37°F2007-12-28
|
56°F1996-12-31
21°F1990-12-22
|
| Spring (Mar–May) | 102°F2021-05-31
43°F1985-03-05
|
66°F2000-05-23
28°F1999-04-09
|
| Summer (Jun–Aug) | 111°F1988-07-17
54°F1988-06-06
|
77°F2020-08-16
40°F1999-06-07
|
| Autumn (Sep–Nov) | 114°F2022-09-06
42°F2019-11-30
|
78°F2022-09-06
25°F1985-11-13
|
All-time records
The most extreme value Santa Rosa has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.