New Philadelphia climate — normals and trends

Q: What is the climate of New Philadelphia?

New Philadelphia has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,062 mm of precipitation per year.

Q: What is the hottest day ever recorded in New Philadelphia?

The hottest day measured in New Philadelphia between 1940 and 2025 was 16 July 1988, reaching 39.1 °C.

Q: What is the coldest day in New Philadelphia?

The coldest day measured in New Philadelphia between 1940 and 2025 was 19 January 1994, at -30.6 °C.

Q: Does it snow in New Philadelphia?

Yes. New Philadelphia gets on average 67.8 cm of snow per year and has around 106 frost days.

Q: Has the climate of New Philadelphia warmed?

Yes: New Philadelphia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in New Philadelphia?

The wettest day measured in New Philadelphia between 1940 and 2025 was 8 September 2004, with 111 mm of rain in 24 hours.

Q: What was the windiest day in New Philadelphia?

The windiest day measured in New Philadelphia between 1940 and 2025 was 26 January 1971, with winds reaching 44.0 km/h.

Q: What is the warmest month in New Philadelphia?

The warmest month in New Philadelphia is July (22.7 °C on average); the coldest is January (-2.3 °C).

Q: How much does it rain in New Philadelphia?

New Philadelphia receives on average 1,062 mm of precipitation per year, spread over about 137 rainy days.

Q: Is it sunny in New Philadelphia?

New Philadelphia gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

New Philadelphia (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.6 °C and it receives 1,062 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 (22.7 °C on average) and the coldest is January (-2.3 °C). Rainfall peaks in May.

New Philadelphia averages 106 frost days, 23 hot days (≥ 30 °C) and 137 rainy days per year.

New Philadelphia has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.

The number of frost days there went from about 119 to 93 per year over the period.

The hottest day of the period reached 39.1 °C (on 16 July 1988) and the coldest -30.6 °C (on 19 January 1994).

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

New PhiladelphiaOhio

coords: 40.49°, -81.45°
period: 1940–2025 · 86 yrs

DfaHot-summer humid continentalWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthOctober

Mean daily temperature

10.6°C

Average daily high

15.6°C

Average daily low

6.1°C

Annual rainfall

1,062mm

Sunshine / day

8.5h

Mean relative humidity

71%

Average peak wind

15.8km/h

Seasonal range

25.0°C

Frost days (< 0 °C)

106 d/yr

Hot days (≥ 30 °C)

23 d/yr

Rainy days (≥ 1 mm)

137 d/yr

Annual snowfall

67.8 cm

Average feels-like high

14.0 °C

Average feels-like low

3.6 °C

Average peak gust

37.7 km/h

Tropical nights (≥ 20 °C)

20 d/yr

Solar radiation

14.3 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+1.9 °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

39.1 °C

16 July 1988

Coldest day

-30.6 °C

19 January 1994

Wettest day

111 mm

8 September 2004

Windiest day

44.0 km/h

26 January 1971

Strongest gust

105.1 km/h

14 January 1940

Hottest feels-like

42.6 °C

22 July 2011

Coldest feels-like

-36.5 °C

19 January 1994

Snowiest day

21.6 cm

25 November 1950

Sunniest day

14.9 h

22 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	33.9 °C23 June 2025	-25.9 °C22 January 2025	11.2 °C	1,083 mm	29	105
2024	34.8 °C27 August 2024	-14.3 °C17 January 2024	12.8 °C	1,121 mm	38	70
2023	31.4 °C5 September 2023	-13.2 °C3 February 2023	12.3 °C	1,144 mm	12	70
2022	35.0 °C15 June 2022	-21.5 °C23 December 2022	11.4 °C	1,128 mm	31	98
2021	33.4 °C29 June 2021	-20.6 °C17 February 2021	12.2 °C	1,183 mm	28	96
2020	33.9 °C9 July 2020	-11.8 °C27 December 2020	12.2 °C	1,146 mm	40	80
2019	33.8 °C13 September 2019	-20.9 °C31 January 2019	11.8 °C	1,309 mm	32	100
2018	33.7 °C18 June 2018	-22.2 °C7 January 2018	11.6 °C	1,489 mm	31	107
2017	32.4 °C12 June 2017	-21.5 °C6 January 2017	12.1 °C	1,176 mm	22	81
2016	33.1 °C11 June 2016	-17.7 °C16 December 2016	12.3 °C	1,008 mm	49	95
2015	33.0 °C29 July 2015	-24.3 °C20 February 2015	11.4 °C	993 mm	25	92
2014	31.9 °C17 June 2014	-25.8 °C28 January 2014	10.0 °C	1,086 mm	10	116
2013	33.8 °C10 September 2013	-17.0 °C27 January 2013	10.9 °C	1,015 mm	15	116
2012	38.1 °C7 July 2012	-14.3 °C20 January 2012	12.6 °C	853 mm	51	88
2011	36.9 °C21 July 2011	-21.4 °C10 February 2011	11.6 °C	1,422 mm	40	97
2010	34.4 °C23 July 2010	-16.6 °C8 February 2010	11.3 °C	882 mm	41	108
2009	32.6 °C9 August 2009	-25.9 °C16 January 2009	10.7 °C	997 mm	11	101
2008	33.3 °C9 June 2008	-18.0 °C22 December 2008	10.6 °C	1,068 mm	26	116
2007	33.7 °C24 August 2007	-20.3 °C6 February 2007	11.4 °C	984 mm	36	105
2006	33.7 °C2 August 2006	-15.1 °C19 February 2006	11.6 °C	1,103 mm	25	79
2005	34.9 °C12 August 2005	-20.4 °C24 January 2005	11.1 °C	1,032 mm	38	95
2004	30.5 °C9 June 2004	-19.8 °C25 January 2004	10.8 °C	1,260 mm	4	98
2003	31.3 °C26 June 2003	-23.6 °C27 January 2003	10.4 °C	1,229 mm	10	109
2002	35.3 °C1 August 2002	-12.8 °C4 March 2002	11.7 °C	944 mm	43	100
2001	33.7 °C8 August 2001	-13.9 °C3 January 2001	11.4 °C	900 mm	20	95
2000	32.0 °C11 June 2000	-19.0 °C23 December 2000	10.5 °C	1,017 mm	4	110
1999	35.2 °C31 July 1999	-19.8 °C5 January 1999	11.4 °C	864 mm	38	102
1998	32.7 °C6 September 1998	-13.7 °C23 December 1998	12.2 °C	945 mm	21	78
1997	32.1 °C27 July 1997	-22.5 °C19 January 1997	10.0 °C	1,016 mm	10	107
1996	32.4 °C30 June 1996	-20.0 °C4 February 1996	9.8 °C	1,435 mm	13	115
1995	35.6 °C15 July 1995	-22.3 °C12 February 1995	10.3 °C	1,112 mm	32	120
1994	34.6 °C17 June 1994	-30.6 °C19 January 1994	10.6 °C	1,034 mm	21	100
1993	35.7 °C28 July 1993	-20.7 °C15 March 1993	10.7 °C	974 mm	42	96
1992	32.2 °C14 July 1992	-19.8 °C19 January 1992	10.3 °C	977 mm	9	96
1991	35.3 °C7 July 1991	-18.3 °C25 January 1991	12.2 °C	763 mm	56	101
1990	34.7 °C4 July 1990	-17.3 °C26 February 1990	11.8 °C	1,422 mm	16	89
1989	33.7 °C10 July 1989	-25.2 °C22 December 1989	10.0 °C	1,173 mm	17	108
1988	39.1 °C16 July 1988	-19.0 °C5 March 1988	10.6 °C	847 mm	51	119
1987	33.9 °C16 August 1987	-17.7 °C24 January 1987	11.4 °C	1,014 mm	37	104
1986	33.7 °C18 July 1986	-21.9 °C8 March 1986	11.1 °C	1,052 mm	17	99
1985	34.2 °C13 August 1985	-27.9 °C20 January 1985	10.6 °C	1,059 mm	18	101
1984	32.8 °C9 June 1984	-26.6 °C21 January 1984	10.5 °C	1,177 mm	12	103
1983	34.1 °C15 July 1983	-25.1 °C25 December 1983	10.8 °C	1,098 mm	46	96
1982	32.3 °C7 July 1982	-28.0 °C17 January 1982	10.6 °C	989 mm	15	105
1981	32.2 °C8 July 1981	-21.9 °C12 January 1981	10.1 °C	1,004 mm	12	115
1980	35.5 °C20 July 1980	-19.2 °C25 December 1980	9.8 °C	1,119 mm	19	116
1979	30.5 °C31 July 1979	-25.7 °C11 February 1979	9.7 °C	1,209 mm	3	110
1978	34.0 °C22 July 1978	-20.4 °C2 March 1978	9.5 °C	1,110 mm	20	114
1977	34.8 °C6 July 1977	-26.3 °C17 January 1977	10.3 °C	1,153 mm	28	106
1976	32.0 °C11 July 1976	-20.7 °C9 January 1976	9.5 °C	905 mm	13	129
1975	34.5 °C1 August 1975	-25.6 °C10 February 1975	10.7 °C	1,247 mm	22	113
1974	34.4 °C14 July 1974	-17.7 °C13 January 1974	10.5 °C	1,126 mm	15	100
1973	34.2 °C28 August 1973	-19.8 °C17 February 1973	11.4 °C	1,234 mm	19	93
1972	32.8 °C23 July 1972	-24.0 °C16 January 1972	9.7 °C	1,060 mm	9	113
1971	35.3 °C28 June 1971	-23.4 °C2 February 1971	10.4 °C	991 mm	8	111
1970	33.8 °C1 July 1970	-22.3 °C22 January 1970	10.5 °C	1,011 mm	26	109
1969	32.8 °C27 June 1969	-16.9 °C12 January 1969	9.9 °C	988 mm	14	127
1968	32.9 °C6 August 1968	-24.3 °C8 January 1968	9.9 °C	983 mm	22	114
1967	32.5 °C13 June 1967	-24.0 °C8 February 1967	9.8 °C	1,058 mm	11	105
1966	35.8 °C3 July 1966	-19.9 °C29 January 1966	9.8 °C	1,004 mm	25	115
1965	34.2 °C15 August 1965	-23.9 °C17 January 1965	10.4 °C	1,036 mm	16	114
1964	33.7 °C10 September 1964	-17.8 °C17 February 1964	10.6 °C	1,048 mm	32	112
1963	33.5 °C17 July 1963	-28.5 °C24 January 1963	9.4 °C	737 mm	19	117
1962	34.2 °C20 August 1962	-22.0 °C12 December 1962	9.9 °C	956 mm	27	117
1961	33.3 °C1 July 1961	-22.7 °C25 January 1961	10.3 °C	1,024 mm	21	105
1960	31.6 °C1 September 1960	-21.0 °C22 December 1960	9.9 °C	903 mm	19	122
1959	34.0 °C1 July 1959	-20.8 °C18 January 1959	11.0 °C	1,162 mm	42	117
1958	32.0 °C4 July 1958	-24.9 °C11 December 1958	9.3 °C	969 mm	7	109
1957	33.2 °C20 July 1957	-23.3 °C17 January 1957	10.7 °C	1,047 mm	20	106
1956	33.4 °C27 July 1956	-15.4 °C21 March 1956	10.5 °C	1,127 mm	9	106
1955	35.2 °C2 August 1955	-23.3 °C4 February 1955	10.9 °C	939 mm	40	119
1954	36.6 °C5 September 1954	-15.6 °C21 December 1954	10.9 °C	958 mm	23	112
1953	36.3 °C3 September 1953	-17.8 °C18 February 1953	11.4 °C	774 mm	44	94
1952	35.7 °C26 June 1952	-13.7 °C30 January 1952	11.0 °C	994 mm	36	111
1951	34.0 °C31 August 1951	-24.3 °C16 December 1951	10.2 °C	1,220 mm	24	109
1950	32.6 °C17 August 1950	-26.0 °C27 December 1950	9.8 °C	1,309 mm	8	124
1949	34.6 °C4 July 1949	-15.9 °C30 January 1949	11.6 °C	1,032 mm	31	101
1948	35.7 °C27 August 1948	-22.7 °C9 February 1948	10.6 °C	1,185 mm	26	95
1947	31.0 °C25 August 1947	-17.1 °C5 February 1947	9.6 °C	1,040 mm	10	129
1946	32.2 °C19 July 1946	-22.3 °C27 January 1946	10.9 °C	990 mm	5	92
1945	31.9 °C28 June 1945	-21.2 °C27 January 1945	10.0 °C	1,168 mm	13	108
1944	32.6 °C11 August 1944	-19.7 °C22 December 1944	10.3 °C	972 mm	23	122
1943	31.6 °C1 September 1943	-21.4 °C18 February 1943	9.1 °C	977 mm	5	135
1942	32.9 °C2 August 1942	-25.7 °C21 December 1942	9.6 °C	1,129 mm	5	121
1941	33.1 °C28 July 1941	-22.1 °C4 February 1941	9.8 °C	796 mm	12	125
1940	33.7 °C25 July 1940	-25.9 °C19 January 1940	8.6 °C	1,152 mm	17	133

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

16.3 °C

+0.7 °C

Hot days (≥ 30 °C)

29 d/yr

Frost days (< 0 °C)

105 d/yr

-1

Annual rainfall

1083 mm

+21 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	-1.4 °C	-3.1 °C	44 mm	-38 mm
Feb	3.2 °C	-0.5 °C	108 mm	+33 mm
Mar	14.1 °C	+4.9 °C	80 mm	-22 mm
Apr	17.5 °C	+1.7 °C	118 mm	+14 mm
May	20.0 °C	-1.2 °C	177 mm	+68 mm
Jun	27.7 °C	+1.8 °C	140 mm	+40 mm
Jul	29.4 °C	+1.4 °C	101 mm	+6 mm
Aug	27.2 °C	0.0 °C	35 mm	-47 mm
Sep	26.3 °C	+2.7 °C	61 mm	-17 mm
Oct	18.1 °C	+0.9 °C	97 mm	+26 mm
Nov	9.7 °C	-0.2 °C	53 mm	-31 mm
Dec	3.4 °C	-0.5 °C	72 mm	-10 mm

The year's extremes

Hottest day

33.9 °C

23 Jun 2025

Coldest day

-25.9 °C

22 Jan 2025

Wettest day

37.5 mm

7 Oct 2025

Windiest day

33.7 km/h

29 Dec 2025

Strongest gust

81.0 km/h

15 Apr 2025

Hottest feels-like

38.7 °C

23 Jun 2025

Coldest feels-like

-31.0 °C

22 Jan 2025

Snowiest day

6.8 cm

2 Dec 2025

Sunniest day

14.9 h

22 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 New Philadelphia?

New Philadelphia has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 1,062 mm of precipitation per year.

What is the hottest day ever recorded in New Philadelphia?

The hottest day measured in New Philadelphia between 1940 and 2025 was 16 July 1988, reaching 39.1 °C.

What is the coldest day in New Philadelphia?

The coldest day measured in New Philadelphia between 1940 and 2025 was 19 January 1994, at -30.6 °C.

Does it snow in New Philadelphia?

Yes. New Philadelphia gets on average 67.8 cm of snow per year and has around 106 frost days.

Has the climate of New Philadelphia warmed?

Yes: New Philadelphia warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in New Philadelphia?

The wettest day measured in New Philadelphia between 1940 and 2025 was 8 September 2004, with 111 mm of rain in 24 hours.

What was the windiest day in New Philadelphia?

The windiest day measured in New Philadelphia between 1940 and 2025 was 26 January 1971, with winds reaching 44.0 km/h.

What is the warmest month in New Philadelphia?

The warmest month in New Philadelphia is July (22.7 °C on average); the coldest is January (-2.3 °C).

How much does it rain in New Philadelphia?

New Philadelphia receives on average 1,062 mm of precipitation per year, spread over about 137 rainy days.

Is it sunny in New Philadelphia?

New Philadelphia gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.

What is the biggest single-day snowfall in New Philadelphia?

The heaviest 24-hour snowfall measured in New Philadelphia between 1940 and 2025 was 25 November 1950, with 21.6 cm.

Are there tropical nights in New Philadelphia?

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

What was the most extreme apparent temperature in New Philadelphia?

In New Philadelphia, between 1940 and 2025, the highest apparent temperature reached 42.6 °C on 22 July 2011, and the lowest was -36.5 °C on 19 January 1994.

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