Santa Rosa weather records
Record high and low temperatures for Santa Rosa, by month, by season, and all-time, with the dates they occurred, across 1980–2026 of daily climate history. Its hottest day on record reached 108°F on 2022-09-06; its coldest fell to 23°F on 1990-12-25.
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 | 76°F2009-01-12
42°F1983-01-02
|
58°F1980-01-13
24°F2011-01-10
|
| February | 80°F2016-02-15
43°F1989-02-04
|
59°F2016-02-17
25°F2022-02-25
|
| March | 86°F2026-03-20
46°F1991-03-24
|
58°F2001-03-20
29°F2006-03-11
|
| April | 92°F1996-04-30
47°F1982-04-01
|
62°F2019-04-24
33°F1999-04-09
|
| May | 99°F2001-05-30
54°F1998-05-12
|
70°F2008-05-15
38°F2011-05-01
|
| June | 107°F2000-06-14
57°F2011-06-01
|
73°F2017-06-18
44°F1982-06-05
|
| July | 104°F1988-07-17
67°F2012-07-17
|
72°F2006-07-23
48°F1999-07-29
|
| August | 103°F1998-08-04
63°F2000-08-30
|
75°F2020-08-16
48°F2002-08-04
|
| September | 108°F2022-09-06
62°F1986-09-25
|
75°F2022-09-06
45°F2013-09-27
|
| October | 100°F1980-10-03
55°F2025-10-14
|
66°F2019-10-24
36°F2019-10-31
|
| November | 83°F1997-11-02
46°F1985-11-24
|
59°F1981-11-16
26°F2010-11-29
|
| December | 74°F2011-12-02
38°F1990-12-21
|
58°F2014-12-09
23°F1990-12-25
|
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) | 80°F2016-02-15
38°F1990-12-21
|
59°F2016-02-17
23°F1990-12-25
|
| Spring (Mar–May) | 99°F2001-05-30
46°F1991-03-24
|
70°F2008-05-15
29°F2006-03-11
|
| Summer (Jun–Aug) | 107°F2000-06-14
57°F2011-06-01
|
75°F2020-08-16
44°F1982-06-05
|
| Autumn (Sep–Nov) | 108°F2022-09-06
46°F1985-11-24
|
75°F2022-09-06
26°F2010-11-29
|
All-time records
The most extreme value Santa Rosa has recorded for each metric across its entire history.
High
Low
Feels-like
Humidity
Wind
Gust
Precip
For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.