Thermograph

How unusual is the weather? Graded against ~45 years of local climate history.

Swindon weather records

Record high and low temperatures for Swindon, 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 35°C on 2022-07-18; its coldest fell to -15°C on 1981-12-12.

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.

MonthDaytime highOvernight low
January
13°C1999-01-06
-6°C1987-01-12
12°C2022-01-01
-14°C1982-01-14
February
18°C2019-02-26
-4°C1991-02-07
12°C2004-02-03
-9°C1985-02-13
March
21°C2021-03-30
-2°C2018-03-01
12°C2017-03-30
-6°C1986-03-03
April
25°C2003-04-16
3°C1981-04-26
12°C2005-04-30
-4°C2022-04-03
May
30°C2026-05-26
7°C1996-05-18
15°C2012-05-25
0°C1982-05-05
June
33°C2026-06-25
10°C1989-06-01
20°C2026-06-24
2°C1991-06-02
July
35°C2022-07-18
14°C2015-07-24
20°C2022-07-19
5°C2015-07-31
August
34°C2020-08-12
13°C2011-08-18
20°C2020-08-12
6°C2014-08-21
September
30°C2023-09-09
10°C1986-09-15
18°C2023-09-07
2°C2018-09-25
October
27°C2011-10-01
5°C2018-10-27
16°C2023-10-01
-3°C1983-10-30
November
17°C2005-11-02
-2°C1993-11-23
14°C2010-11-04
-6°C1983-11-23
December
15°C2015-12-20
-3°C2010-12-19
13°C2015-12-26
-15°C1981-12-12

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).

SeasonDaytime highOvernight low
Winter (Dec–Feb)
18°C2019-02-26
-6°C1987-01-12
13°C2015-12-26
-15°C1981-12-12
Spring (Mar–May)
30°C2026-05-26
-2°C2018-03-01
15°C2012-05-25
-6°C1986-03-03
Summer (Jun–Aug)
35°C2022-07-18
10°C1989-06-01
20°C2026-06-24
2°C1991-06-02
Autumn (Sep–Nov)
30°C2023-09-09
-2°C1993-11-23
18°C2023-09-07
-6°C1983-11-23

All-time records

The most extreme value Swindon has recorded for each metric across its entire history.

High

Highest 35°C 2022-07-18
Lowest -6°C 1987-01-12

Low

Highest 20°C 2026-06-24
Lowest -15°C 1981-12-12

Feels-like

Highest 44°C 2026-06-25
Lowest -28°C 1981-12-13

Humidity

Highest 17.8 g/m³ 2026-06-24
Lowest 2.1 g/m³ 1987-01-12

Wind

Highest 63 km/h 1990-01-25
Lowest 4 km/h 2024-12-27

Gust

Highest 130 km/h 1990-01-25
Lowest 8 km/h 2004-02-12

Precip

Wettest 51 mm 2007-07-20
Driest 9-day dry spell 1990-07-18

For rainfall, the “driest” figure is the longest run of consecutive days without measurable rain, dated to when that dry spell began.

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