Bustleton climate — normals and trends

Q: What is the climate of Bustleton?

Bustleton has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.7 °C and it receives 1,071 mm of precipitation per year.

Q: What is the hottest day ever recorded in Bustleton?

The hottest day measured in Bustleton between 1940 and 2025 was 22 July 2011, reaching 40.1 °C.

Q: What is the coldest day in Bustleton?

The coldest day measured in Bustleton between 1940 and 2025 was 22 January 1984, at -25.8 °C.

Q: Does it snow in Bustleton?

Yes. Bustleton gets on average 49.5 cm of snow per year and has around 80 frost days.

Q: Has the climate of Bustleton warmed?

Yes: Bustleton warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Bustleton?

The wettest day measured in Bustleton between 1940 and 2025 was 16 September 1999, with 145 mm of rain in 24 hours.

Q: What was the windiest day in Bustleton?

The windiest day measured in Bustleton between 1940 and 2025 was 29 October 2012, with winds reaching 53.8 km/h.

Q: What is the warmest month in Bustleton?

The warmest month in Bustleton is July (24.9 °C on average); the coldest is January (0.4 °C).

Q: How much does it rain in Bustleton?

Bustleton receives on average 1,071 mm of precipitation per year, spread over about 116 rainy days.

Q: Is it sunny in Bustleton?

Bustleton gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

Bustleton (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.7 °C and it receives 1,071 mm of precipitation per year.

These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.

The warmest month is July (24.9 °C on average) and the coldest is January (0.4 °C). Rainfall peaks in March.

Bustleton averages 80 frost days, 38 hot days (≥ 30 °C) and 116 rainy days per year.

Bustleton has warmed by +1.7 °C between 1940 and 2025, or +0.20 °C per decade. This trend is statistically significant.

The number of frost days there went from about 89 to 71 per year over the period.

The hottest day of the period reached 40.1 °C (on 22 July 2011) and the coldest -25.8 °C (on 22 January 1984).

Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.

Climate normals · ERA5

BustletonPennsylvania

coords: 40.08°, -75.03°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthMarchDriest monthFebruary

Mean daily temperature

12.7°C

Average daily high

17.4°C

Average daily low

8.4°C

Annual rainfall

1,071mm

Sunshine / day

8.9h

Mean relative humidity

67%

Average peak wind

17.6km/h

Seasonal range

24.5°C

Frost days (< 0 °C)

80 d/yr

Hot days (≥ 30 °C)

38 d/yr

Rainy days (≥ 1 mm)

116 d/yr

Annual snowfall

49.5 cm

Average feels-like high

16.0 °C

Average feels-like low

6.0 °C

Average peak gust

37.8 km/h

Tropical nights (≥ 20 °C)

49 d/yr

Solar radiation

14.7 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.7 °C

since 1940

+0.2 °C per decade · r² = 0.41 · p = < 0.001

19402025

Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).

A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.

Records for the period

Hottest day

40.1 °C

22 July 2011

Coldest day

-25.8 °C

22 January 1984

Wettest day

145 mm

16 September 1999

Windiest day

53.8 km/h

29 October 2012

Strongest gust

141.5 km/h

25 November 1950

Hottest feels-like

45.0 °C

15 July 1995

Coldest feels-like

-30.9 °C

22 January 1984

Snowiest day

36.0 cm

20 March 1958

Sunniest day

14.1 h

1 July 1952

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	38.2 °C24 June 2025	-13.5 °C22 January 2025	13.5 °C	927 mm	47	82
2024	36.4 °C16 July 2024	-14.4 °C23 December 2024	14.2 °C	1,071 mm	43	59
2023	35.3 °C6 September 2023	-11.0 °C4 February 2023	14.4 °C	1,110 mm	48	45
2022	35.6 °C9 August 2022	-14.4 °C31 January 2022	13.8 °C	1,170 mm	51	88
2021	34.9 °C30 June 2021	-9.1 °C8 February 2021	14.1 °C	1,043 mm	51	69
2020	35.9 °C3 July 2020	-11.2 °C19 December 2020	14.3 °C	1,278 mm	50	55
2019	37.0 °C21 July 2019	-15.3 °C31 January 2019	13.8 °C	1,195 mm	46	76
2018	35.5 °C2 July 2018	-17.1 °C7 January 2018	13.7 °C	1,505 mm	49	75
2017	35.7 °C13 June 2017	-12.9 °C10 January 2017	14.1 °C	1,073 mm	45	62
2016	36.0 °C14 August 2016	-14.1 °C14 February 2016	14.1 °C	912 mm	59	67
2015	34.7 °C20 July 2015	-16.2 °C20 February 2015	13.7 °C	984 mm	51	77
2014	33.9 °C18 June 2014	-19.7 °C4 January 2014	12.2 °C	1,047 mm	27	89
2013	35.2 °C18 July 2013	-11.9 °C23 January 2013	12.9 °C	1,006 mm	35	86
2012	38.1 °C18 July 2012	-11.0 °C4 January 2012	14.5 °C	906 mm	49	53
2011	40.1 °C22 July 2011	-11.6 °C24 January 2011	14.0 °C	1,346 mm	53	80
2010	38.2 °C6 July 2010	-11.4 °C30 December 2010	14.0 °C	1,022 mm	74	79
2009	34.1 °C10 August 2009	-14.8 °C17 January 2009	12.8 °C	1,217 mm	22	81
2008	36.7 °C10 June 2008	-11.5 °C11 February 2008	13.4 °C	1,082 mm	51	79
2007	36.2 °C8 August 2007	-12.4 °C26 January 2007	13.3 °C	1,033 mm	46	81
2006	35.6 °C17 July 2006	-10.2 °C19 February 2006	14.0 °C	1,180 mm	41	58
2005	37.0 °C27 July 2005	-17.9 °C29 January 2005	13.0 °C	988 mm	45	86
2004	33.2 °C9 June 2004	-16.1 °C16 January 2004	12.8 °C	1,139 mm	26	81
2003	35.4 °C5 July 2003	-13.9 °C18 January 2003	12.2 °C	1,307 mm	31	84
2002	36.8 °C4 July 2002	-12.7 °C7 December 2002	13.7 °C	1,056 mm	55	71
2001	38.5 °C9 August 2001	-10.8 °C3 January 2001	13.5 °C	763 mm	35	76
2000	34.5 °C11 June 2000	-14.0 °C18 January 2000	12.4 °C	964 mm	21	89
1999	37.2 °C5 July 1999	-11.2 °C2 January 1999	13.4 °C	1,058 mm	44	71
1998	35.0 °C22 July 1998	-10.4 °C25 December 1998	14.1 °C	930 mm	40	49
1997	35.3 °C17 July 1997	-15.5 °C19 January 1997	12.5 °C	967 mm	38	69
1996	34.8 °C20 May 1996	-18.4 °C5 February 1996	12.2 °C	1,374 mm	16	75
1995	38.2 °C15 July 1995	-15.3 °C6 February 1995	13.1 °C	933 mm	48	83
1994	36.3 °C19 June 1994	-19.6 °C19 January 1994	13.1 °C	1,086 mm	43	77
1993	36.6 °C10 July 1993	-16.8 °C7 February 1993	12.9 °C	1,095 mm	46	78
1992	36.0 °C14 July 1992	-11.6 °C19 January 1992	12.2 °C	952 mm	21	83
1991	36.6 °C29 June 1991	-12.7 °C23 January 1991	13.8 °C	1,049 mm	53	73
1990	35.2 °C5 July 1990	-12.1 °C26 February 1990	13.9 °C	1,021 mm	34	59
1989	33.9 °C27 June 1989	-14.5 °C23 December 1989	12.3 °C	1,331 mm	30	95
1988	36.5 °C15 August 1988	-18.9 °C11 January 1988	12.2 °C	932 mm	54	91
1987	35.4 °C21 July 1987	-22.3 °C28 January 1987	12.6 °C	1,153 mm	42	75
1986	36.7 °C7 July 1986	-12.3 °C15 January 1986	12.7 °C	1,098 mm	37	81
1985	34.9 °C14 August 1985	-21.3 °C21 January 1985	12.9 °C	879 mm	25	86
1984	34.8 °C9 June 1984	-25.8 °C22 January 1984	12.5 °C	1,249 mm	32	82
1983	36.6 °C20 August 1983	-17.2 °C25 December 1983	12.8 °C	1,441 mm	52	72
1982	34.5 °C19 July 1982	-20.2 °C17 January 1982	12.2 °C	952 mm	20	83
1981	34.6 °C9 July 1981	-23.0 °C12 January 1981	12.1 °C	1,015 mm	28	90
1980	36.4 °C16 July 1980	-15.5 °C25 December 1980	12.2 °C	837 mm	50	92
1979	33.8 °C10 August 1979	-22.1 °C18 February 1979	12.5 °C	1,260 mm	24	73
1978	35.2 °C23 July 1978	-18.1 °C5 February 1978	11.4 °C	1,267 mm	29	95
1977	36.0 °C19 July 1977	-19.7 °C17 January 1977	12.4 °C	1,189 mm	39	91
1976	32.7 °C22 August 1976	-15.4 °C23 January 1976	12.1 °C	921 mm	34	95
1975	35.4 °C2 August 1975	-10.1 °C24 December 1975	13.1 °C	1,277 mm	29	80
1974	34.9 °C10 July 1974	-12.5 °C10 February 1974	12.9 °C	953 mm	38	77
1973	35.9 °C28 August 1973	-13.5 °C17 February 1973	13.3 °C	1,215 mm	40	65
1972	35.2 °C23 July 1972	-14.8 °C16 January 1972	12.1 °C	1,376 mm	27	89
1971	35.5 °C8 July 1971	-13.5 °C18 January 1971	12.8 °C	1,248 mm	31	72
1970	33.9 °C23 September 1970	-16.7 °C23 January 1970	12.5 °C	920 mm	41	83
1969	35.4 °C17 July 1969	-11.3 °C28 January 1969	12.3 °C	1,134 mm	35	98
1968	37.4 °C1 July 1968	-20.2 °C12 January 1968	12.4 °C	919 mm	44	85
1967	33.2 °C16 June 1967	-20.6 °C13 February 1967	11.5 °C	1,045 mm	21	90
1966	39.6 °C3 July 1966	-15.8 °C29 January 1966	12.1 °C	893 mm	46	89
1965	34.5 °C25 July 1965	-17.1 °C15 January 1965	11.9 °C	674 mm	37	90
1964	35.7 °C30 June 1964	-16.8 °C15 January 1964	12.3 °C	955 mm	44	91
1963	35.6 °C1 July 1963	-20.0 °C29 January 1963	11.7 °C	906 mm	26	92
1962	34.5 °C19 May 1962	-17.4 °C11 February 1962	11.6 °C	944 mm	26	98
1961	33.5 °C13 June 1961	-22.6 °C22 January 1961	12.1 °C	1,130 mm	42	84
1960	32.7 °C3 August 1960	-16.2 °C23 December 1960	11.9 °C	1,106 mm	22	105
1959	36.5 °C29 June 1959	-14.2 °C23 December 1959	13.1 °C	1,018 mm	56	86
1958	33.5 °C31 July 1958	-15.0 °C17 February 1958	11.6 °C	1,272 mm	31	84
1957	36.8 °C22 July 1957	-17.7 °C18 January 1957	12.9 °C	895 mm	42	74
1956	35.9 °C2 July 1956	-9.5 °C23 January 1956	12.3 °C	1,092 mm	33	68
1955	36.9 °C2 August 1955	-17.2 °C3 February 1955	12.8 °C	912 mm	45	91
1954	36.6 °C31 July 1954	-19.0 °C18 January 1954	12.8 °C	948 mm	30	79
1953	37.3 °C2 September 1953	-9.3 °C18 December 1953	13.5 °C	1,056 mm	49	63
1952	37.7 °C26 June 1952	-14.0 °C30 January 1952	12.9 °C	1,249 mm	41	70
1951	33.5 °C27 July 1951	-16.4 °C17 December 1951	12.7 °C	1,040 mm	38	73
1950	33.4 °C26 June 1950	-12.8 °C27 December 1950	12.3 °C	1,000 mm	24	90
1949	36.5 °C5 July 1949	-10.5 °C12 February 1949	13.7 °C	830 mm	46	65
1948	36.8 °C26 August 1948	-20.3 °C19 January 1948	12.0 °C	1,242 mm	24	85
1947	33.8 °C14 August 1947	-13.6 °C5 February 1947	12.3 °C	997 mm	23	94
1946	32.5 °C20 July 1946	-11.7 °C23 January 1946	13.1 °C	932 mm	18	68
1945	35.1 °C1 July 1945	-17.5 °C25 January 1945	12.3 °C	1,305 mm	22	84
1944	35.2 °C5 August 1944	-10.7 °C17 January 1944	12.3 °C	1,152 mm	43	93
1943	33.9 °C25 June 1943	-16.1 °C15 February 1943	12.0 °C	874 mm	46	98
1942	34.6 °C19 July 1942	-18.1 °C11 January 1942	12.2 °C	1,198 mm	25	87
1941	35.2 °C28 July 1941	-9.9 °C30 January 1941	12.4 °C	951 mm	36	98
1940	34.6 °C26 July 1940	-15.6 °C29 January 1940	11.3 °C	1,172 mm	16	91

Normals computed over complete calendar years 1940–2025.

A specific year

Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?

Year

Across the whole year

Average daily high

18.1 °C

+0.7 °C

Hot days (≥ 30 °C)

47 d/yr

Frost days (< 0 °C)

82 d/yr

Annual rainfall

927 mm

-144 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	2.9 °C	-1.3 °C	30 mm	-51 mm
Feb	6.2 °C	+0.3 °C	69 mm	-8 mm
Mar	15.1 °C	+4.3 °C	94 mm	-6 mm
Apr	18.7 °C	+1.7 °C	90 mm	-4 mm
May	22.4 °C	0.0 °C	137 mm	+43 mm
Jun	28.4 °C	+1.2 °C	68 mm	-17 mm
Jul	31.4 °C	+1.8 °C	165 mm	+66 mm
Aug	27.9 °C	-0.6 °C	19 mm	-80 mm
Sep	26.4 °C	+1.5 °C	79 mm	-8 mm
Oct	19.7 °C	+0.8 °C	62 mm	-19 mm
Nov	12.7 °C	0.0 °C	49 mm	-37 mm
Dec	4.5 °C	-2.1 °C	67 mm	-25 mm

The year's extremes

Hottest day

38.2 °C

24 Jun 2025

Coldest day

-13.5 °C

22 Jan 2025

Wettest day

41.4 mm

31 Jul 2025

Windiest day

39.8 km/h

16 Feb 2025

Strongest gust

87.1 km/h

16 Feb 2025

Hottest feels-like

42.6 °C

23 Jun 2025

Coldest feels-like

-18.3 °C

22 Jan 2025

Snowiest day

8.8 cm

14 Dec 2025

Sunniest day

14.1 h

24 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Bustleton?

Bustleton has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.7 °C and it receives 1,071 mm of precipitation per year.

What is the hottest day ever recorded in Bustleton?

The hottest day measured in Bustleton between 1940 and 2025 was 22 July 2011, reaching 40.1 °C.

What is the coldest day in Bustleton?

The coldest day measured in Bustleton between 1940 and 2025 was 22 January 1984, at -25.8 °C.

Does it snow in Bustleton?

Yes. Bustleton gets on average 49.5 cm of snow per year and has around 80 frost days.

Has the climate of Bustleton warmed?

Yes: Bustleton warmed by +1.7 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Bustleton?

The wettest day measured in Bustleton between 1940 and 2025 was 16 September 1999, with 145 mm of rain in 24 hours.

What was the windiest day in Bustleton?

The windiest day measured in Bustleton between 1940 and 2025 was 29 October 2012, with winds reaching 53.8 km/h.

What is the warmest month in Bustleton?

The warmest month in Bustleton is July (24.9 °C on average); the coldest is January (0.4 °C).

How much does it rain in Bustleton?

Bustleton receives on average 1,071 mm of precipitation per year, spread over about 116 rainy days.

Is it sunny in Bustleton?

Bustleton gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.

What is the biggest single-day snowfall in Bustleton?

The heaviest 24-hour snowfall measured in Bustleton between 1940 and 2025 was 20 March 1958, with 36.0 cm.

Are there tropical nights in Bustleton?

Yes: Bustleton has on average 49 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Bustleton?

In Bustleton, between 1940 and 2025, the highest apparent temperature reached 45.0 °C on 15 July 1995, and the lowest was -30.9 °C on 22 January 1984.

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