North Bel Air climate — normals and trends

Q: What is the climate of North Bel Air?

North Bel Air has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.9 °C and it receives 1,039 mm of precipitation per year.

Q: What is the hottest day ever recorded in North Bel Air?

The hottest day measured in North Bel Air between 1940 and 2025 was 29 June 2012, reaching 38.3 °C.

Q: What is the coldest day in North Bel Air?

The coldest day measured in North Bel Air between 1940 and 2025 was 22 January 1984, at -22.3 °C.

Q: Does it snow in North Bel Air?

Yes. North Bel Air gets on average 45.8 cm of snow per year and has around 67 frost days.

Q: Has the climate of North Bel Air warmed?

Yes: North Bel Air warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in North Bel Air?

The wettest day measured in North Bel Air between 1940 and 2025 was 30 September 2010, with 134 mm of rain in 24 hours.

Q: What was the windiest day in North Bel Air?

The windiest day measured in North Bel Air between 1940 and 2025 was 15 October 1954, with winds reaching 54.8 km/h.

Q: What is the warmest month in North Bel Air?

The warmest month in North Bel Air is July (25.0 °C on average); the coldest is January (0.7 °C).

Q: How much does it rain in North Bel Air?

North Bel Air receives on average 1,039 mm of precipitation per year, spread over about 114 rainy days.

Q: Is it sunny in North Bel Air?

North Bel Air gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

North Bel Air (United States) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.9 °C and it receives 1,039 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 (25.0 °C on average) and the coldest is January (0.7 °C). Rainfall peaks in July.

North Bel Air averages 67 frost days, 29 hot days (≥ 30 °C) and 114 rainy days per year.

North Bel Air has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.

The number of frost days there went from about 76 to 58 per year over the period.

The hottest day of the period reached 38.3 °C (on 29 June 2012) and the coldest -22.3 °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

North Bel AirMaryland

coords: 39.54°, -76.35°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthJulyColdest monthJanuaryWettest monthJulyDriest monthFebruary

Mean daily temperature

12.9°C

Average daily high

17.0°C

Average daily low

9.2°C

Annual rainfall

1,039mm

Sunshine / day

9.0h

Mean relative humidity

69%

Average peak wind

17.0km/h

Seasonal range

24.3°C

Frost days (< 0 °C)

67 d/yr

Hot days (≥ 30 °C)

29 d/yr

Rainy days (≥ 1 mm)

114 d/yr

Annual snowfall

45.8 cm

Average feels-like high

16.0 °C

Average feels-like low

7.0 °C

Average peak gust

38.2 km/h

Tropical nights (≥ 20 °C)

60 d/yr

Solar radiation

14.9 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.6 °C

since 1940

+0.2 °C per decade · r² = 0.39 · 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

38.3 °C

29 June 2012

Coldest day

-22.3 °C

22 January 1984

Wettest day

134 mm

30 September 2010

Windiest day

54.8 km/h

15 October 1954

Strongest gust

119.5 km/h

25 November 1950

Hottest feels-like

44.4 °C

15 July 1995

Coldest feels-like

-28.4 °C

19 January 1994

Snowiest day

38.4 cm

20 March 1958

Sunniest day

14.2 h

4 July 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	36.3 °C24 June 2025	-13.0 °C23 January 2025	13.5 °C	1,036 mm	28	72
2024	35.0 °C16 July 2024	-13.4 °C22 January 2024	14.4 °C	1,116 mm	32	48
2023	35.0 °C4 September 2023	-9.9 °C4 February 2023	14.6 °C	1,017 mm	30	26
2022	33.8 °C17 June 2022	-13.9 °C24 December 2022	13.7 °C	1,249 mm	41	75
2021	33.7 °C30 June 2021	-5.5 °C21 February 2021	14.4 °C	1,022 mm	39	51
2020	36.8 °C20 July 2020	-7.5 °C15 February 2020	14.6 °C	1,269 mm	44	40
2019	36.1 °C21 July 2019	-14.7 °C31 January 2019	14.2 °C	1,142 mm	51	60
2018	33.8 °C2 July 2018	-13.8 °C7 January 2018	13.8 °C	1,567 mm	40	62
2017	33.8 °C13 June 2017	-10.4 °C29 December 2017	14.3 °C	985 mm	33	53
2016	35.1 °C14 August 2016	-12.2 °C14 February 2016	14.1 °C	1,043 mm	44	56
2015	32.6 °C23 June 2015	-17.0 °C24 February 2015	13.6 °C	1,021 mm	24	69
2014	33.6 °C18 June 2014	-16.4 °C4 January 2014	12.4 °C	996 mm	14	81
2013	34.4 °C17 July 2013	-11.1 °C23 January 2013	13.1 °C	985 mm	20	71
2012	38.3 °C29 June 2012	-10.1 °C4 January 2012	14.7 °C	868 mm	48	34
2011	38.0 °C22 July 2011	-11.3 °C24 January 2011	14.1 °C	1,266 mm	39	60
2010	37.1 °C6 July 2010	-10.2 °C31 January 2010	13.9 °C	1,059 mm	59	73
2009	33.9 °C10 August 2009	-14.9 °C17 January 2009	12.9 °C	1,238 mm	11	73
2008	35.0 °C10 June 2008	-10.4 °C11 February 2008	13.3 °C	1,074 mm	25	64
2007	35.6 °C8 August 2007	-12.9 °C6 February 2007	13.5 °C	892 mm	37	63
2006	35.4 °C3 August 2006	-10.5 °C19 February 2006	14.0 °C	1,069 mm	32	45
2005	34.6 °C27 July 2005	-13.1 °C28 January 2005	13.2 °C	998 mm	31	73
2004	32.1 °C5 July 2004	-15.0 °C10 January 2004	13.0 °C	1,094 mm	10	70
2003	33.5 °C26 June 2003	-13.8 °C18 January 2003	12.4 °C	1,352 mm	19	81
2002	36.3 °C4 July 2002	-9.2 °C7 December 2002	13.9 °C	915 mm	50	57
2001	34.8 °C9 August 2001	-7.7 °C23 January 2001	13.6 °C	830 mm	16	59
2000	33.9 °C10 July 2000	-12.7 °C22 January 2000	12.7 °C	918 mm	16	72
1999	37.2 °C5 July 1999	-10.8 °C6 January 1999	13.7 °C	1,005 mm	40	59
1998	34.0 °C22 July 1998	-8.1 °C1 January 1998	14.4 °C	942 mm	30	32
1997	35.0 °C16 August 1997	-14.9 °C19 January 1997	12.8 °C	818 mm	30	56
1996	32.5 °C20 May 1996	-16.8 °C5 February 1996	12.2 °C	1,495 mm	6	68
1995	37.0 °C15 July 1995	-14.9 °C6 February 1995	13.2 °C	984 mm	42	70
1994	35.4 °C19 June 1994	-21.5 °C19 January 1994	13.2 °C	1,018 mm	38	63
1993	36.4 °C10 July 1993	-13.5 °C19 February 1993	13.0 °C	1,106 mm	45	65
1992	35.3 °C14 July 1992	-10.7 °C19 January 1992	12.4 °C	1,031 mm	17	61
1991	36.4 °C23 July 1991	-10.0 °C23 January 1991	14.0 °C	897 mm	55	62
1990	35.3 °C5 July 1990	-11.2 °C26 February 1990	14.0 °C	1,080 mm	27	36
1989	34.0 °C11 July 1989	-14.3 °C22 December 1989	12.5 °C	1,355 mm	23	86
1988	36.4 °C15 August 1988	-13.4 °C11 January 1988	12.6 °C	872 mm	52	73
1987	36.5 °C21 July 1987	-14.2 °C27 January 1987	13.1 °C	938 mm	33	63
1986	35.7 °C7 July 1986	-13.1 °C14 February 1986	13.0 °C	933 mm	30	73
1985	33.5 °C14 August 1985	-20.7 °C21 January 1985	12.9 °C	878 mm	12	73
1984	34.0 °C9 June 1984	-22.3 °C22 January 1984	12.7 °C	1,154 mm	21	67
1983	36.8 °C16 July 1983	-18.0 °C25 December 1983	13.0 °C	1,304 mm	50	56
1982	33.3 °C19 July 1982	-20.5 °C17 January 1982	12.5 °C	985 mm	15	73
1981	33.6 °C9 July 1981	-15.6 °C13 January 1981	12.2 °C	934 mm	18	78
1980	34.9 °C21 July 1980	-14.7 °C25 December 1980	12.7 °C	859 mm	43	76
1979	34.9 °C10 August 1979	-20.3 °C18 February 1979	12.7 °C	1,183 mm	21	70
1978	34.8 °C22 July 1978	-16.6 °C20 February 1978	12.1 °C	1,158 mm	23	84
1977	35.2 °C21 July 1977	-18.6 °C17 January 1977	12.8 °C	1,031 mm	35	75
1976	32.9 °C27 June 1976	-12.8 °C19 January 1976	12.3 °C	932 mm	26	84
1975	33.8 °C2 August 1975	-10.1 °C21 January 1975	13.2 °C	1,243 mm	22	61
1974	34.3 °C10 July 1974	-10.9 °C10 February 1974	13.0 °C	949 mm	18	61
1973	36.6 °C28 August 1973	-13.7 °C17 February 1973	13.4 °C	1,087 mm	33	56
1972	34.8 °C21 July 1972	-15.3 °C16 January 1972	12.4 °C	1,266 mm	24	74
1971	33.7 °C8 July 1971	-13.1 °C2 February 1971	13.1 °C	1,118 mm	21	65
1970	33.0 °C4 September 1970	-15.8 °C9 January 1970	12.6 °C	902 mm	34	78
1969	34.5 °C29 May 1969	-10.7 °C5 January 1969	12.4 °C	976 mm	20	89
1968	34.9 °C1 July 1968	-16.3 °C12 January 1968	12.4 °C	862 mm	27	79
1967	32.1 °C12 July 1967	-15.0 °C13 February 1967	11.8 °C	972 mm	11	81
1966	37.7 °C3 July 1966	-14.8 °C29 January 1966	12.1 °C	1,015 mm	42	85
1965	33.9 °C25 July 1965	-15.3 °C15 January 1965	12.2 °C	671 mm	26	85
1964	35.0 °C10 June 1964	-14.8 °C15 January 1964	12.5 °C	935 mm	30	79
1963	33.7 °C19 July 1963	-20.5 °C29 January 1963	11.8 °C	878 mm	25	82
1962	34.6 °C19 May 1962	-17.9 °C11 February 1962	11.9 °C	989 mm	23	81
1961	33.2 °C22 July 1961	-18.5 °C2 February 1961	12.4 °C	1,028 mm	38	69
1960	32.8 °C23 July 1960	-17.9 °C23 December 1960	12.2 °C	1,017 mm	16	90
1959	36.7 °C29 June 1959	-11.8 °C20 February 1959	13.2 °C	924 mm	36	75
1958	32.7 °C2 July 1958	-15.6 °C17 February 1958	11.9 °C	1,178 mm	19	69
1957	37.2 °C22 July 1957	-16.4 °C17 January 1957	13.1 °C	982 mm	31	56
1956	35.1 °C2 July 1956	-7.6 °C9 January 1956	12.6 °C	1,122 mm	23	64
1955	35.9 °C22 July 1955	-16.6 °C3 February 1955	12.9 °C	969 mm	32	80
1954	35.5 °C14 July 1954	-17.7 °C18 January 1954	13.0 °C	882 mm	29	68
1953	37.7 °C31 August 1953	-7.8 °C18 December 1953	13.8 °C	914 mm	46	46
1952	37.4 °C26 June 1952	-11.1 °C30 January 1952	13.1 °C	1,365 mm	35	52
1951	33.6 °C27 July 1951	-11.7 °C3 February 1951	12.9 °C	970 mm	31	71
1950	32.7 °C26 June 1950	-12.8 °C27 December 1950	12.5 °C	978 mm	13	67
1949	35.7 °C5 July 1949	-6.8 °C2 February 1949	13.9 °C	881 mm	38	47
1948	35.8 °C26 August 1948	-16.7 °C31 January 1948	12.5 °C	1,154 mm	24	71
1947	32.8 °C14 August 1947	-13.5 °C5 February 1947	12.4 °C	969 mm	15	81
1946	31.8 °C7 July 1946	-10.1 °C23 January 1946	13.2 °C	906 mm	11	54
1945	35.1 °C1 July 1945	-16.3 °C25 January 1945	12.5 °C	1,273 mm	13	75
1944	33.7 °C5 August 1944	-10.1 °C9 January 1944	12.7 °C	1,073 mm	35	79
1943	33.3 °C9 August 1943	-15.5 °C15 February 1943	12.2 °C	843 mm	41	85
1942	35.0 °C19 July 1942	-15.2 °C21 December 1942	12.6 °C	1,301 mm	16	73
1941	35.6 °C28 July 1941	-9.7 °C18 March 1941	12.7 °C	781 mm	31	90
1940	34.3 °C26 July 1940	-14.0 °C20 January 1940	11.6 °C	1,088 mm	12	82

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

17.4 °C

+0.4 °C

Hot days (≥ 30 °C)

28 d/yr

-1

Frost days (< 0 °C)

72 d/yr

Annual rainfall

1036 mm

-3 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	2.5 °C	-1.6 °C	42 mm	-37 mm
Feb	5.8 °C	+0.2 °C	72 mm	-2 mm
Mar	14.5 °C	+4.1 °C	76 mm	-19 mm
Apr	18.2 °C	+1.6 °C	72 mm	-19 mm
May	22.1 °C	+0.1 °C	178 mm	+88 mm
Jun	27.7 °C	+1.0 °C	72 mm	-10 mm
Jul	30.2 °C	+1.1 °C	226 mm	+130 mm
Aug	26.4 °C	-1.6 °C	27 mm	-64 mm
Sep	24.9 °C	+0.4 °C	96 mm	+4 mm
Oct	18.4 °C	-0.1 °C	73 mm	-6 mm
Nov	12.4 °C	+0.2 °C	48 mm	-37 mm
Dec	4.7 °C	-1.8 °C	55 mm	-32 mm

The year's extremes

Hottest day

36.3 °C

24 Jun 2025

Coldest day

-13.0 °C

23 Jan 2025

Wettest day

47.8 mm

30 Oct 2025

Windiest day

35.7 km/h

16 Feb 2025

Strongest gust

83.2 km/h

16 Feb 2025

Hottest feels-like

42.1 °C

23 Jun 2025

Coldest feels-like

-17.9 °C

22 Jan 2025

Snowiest day

9.2 cm

6 Jan 2025

Sunniest day

14.2 h

4 Jul 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 North Bel Air?

North Bel Air has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 12.9 °C and it receives 1,039 mm of precipitation per year.

What is the hottest day ever recorded in North Bel Air?

The hottest day measured in North Bel Air between 1940 and 2025 was 29 June 2012, reaching 38.3 °C.

What is the coldest day in North Bel Air?

The coldest day measured in North Bel Air between 1940 and 2025 was 22 January 1984, at -22.3 °C.

Does it snow in North Bel Air?

Yes. North Bel Air gets on average 45.8 cm of snow per year and has around 67 frost days.

Has the climate of North Bel Air warmed?

Yes: North Bel Air warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in North Bel Air?

The wettest day measured in North Bel Air between 1940 and 2025 was 30 September 2010, with 134 mm of rain in 24 hours.

What was the windiest day in North Bel Air?

The windiest day measured in North Bel Air between 1940 and 2025 was 15 October 1954, with winds reaching 54.8 km/h.

What is the warmest month in North Bel Air?

The warmest month in North Bel Air is July (25.0 °C on average); the coldest is January (0.7 °C).

How much does it rain in North Bel Air?

North Bel Air receives on average 1,039 mm of precipitation per year, spread over about 114 rainy days.

Is it sunny in North Bel Air?

North Bel Air gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.

What is the biggest single-day snowfall in North Bel Air?

The heaviest 24-hour snowfall measured in North Bel Air between 1940 and 2025 was 20 March 1958, with 38.4 cm.

Are there tropical nights in North Bel Air?

Yes: North Bel Air has on average 60 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in North Bel Air?

In North Bel Air, between 1940 and 2025, the highest apparent temperature reached 44.4 °C on 15 July 1995, and the lowest was -28.4 °C on 19 January 1994.

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