Forest Park climate — normals and trends

Q: What is the climate of Forest Park?

Forest Park has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.4 °C and it receives 1,038 mm of precipitation per year.

Q: What is the hottest day ever recorded in Forest Park?

The hottest day measured in Forest Park between 1940 and 2025 was 14 July 1954, reaching 40.2 °C.

Q: What is the coldest day in Forest Park?

The coldest day measured in Forest Park between 1940 and 2025 was 19 January 1994, at -31.0 °C.

Q: Does it snow in Forest Park?

Yes. Forest Park gets on average 44.2 cm of snow per year and has around 88 frost days.

Q: Has the climate of Forest Park warmed?

Yes: Forest Park warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Forest Park?

The wettest day measured in Forest Park between 1940 and 2025 was 9 March 1964, with 99 mm of rain in 24 hours.

Q: What was the windiest day in Forest Park?

The windiest day measured in Forest Park between 1940 and 2025 was 14 September 2008, with winds reaching 45.3 km/h.

Q: What is the warmest month in Forest Park?

The warmest month in Forest Park is July (24.5 °C on average); the coldest is January (-0.8 °C).

Q: How much does it rain in Forest Park?

Forest Park receives on average 1,038 mm of precipitation per year, spread over about 124 rainy days.

Q: Is it sunny in Forest Park?

Forest Park gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

Forest Park (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 12.4 °C and it receives 1,038 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 (24.5 °C on average) and the coldest is January (-0.8 °C). Rainfall peaks in May.

Forest Park averages 88 frost days, 41 hot days (≥ 30 °C) and 124 rainy days per year.

Forest Park has warmed by +1.6 °C between 1940 and 2025, or +0.19 °C per decade. This trend is statistically significant.

The number of frost days there went from about 101 to 75 per year over the period.

The hottest day of the period reached 40.2 °C (on 14 July 1954) and the coldest -31.0 °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

Forest ParkOhio

coords: 39.29°, -84.50°
period: 1940–2025 · 86 yrs

DfaHot-summer humid continentalWarmest monthJulyColdest monthJanuaryWettest monthMayDriest monthSeptember

Mean daily temperature

12.4°C

Average daily high

17.4°C

Average daily low

7.9°C

Annual rainfall

1,038mm

Sunshine / day

8.8h

Mean relative humidity

69%

Average peak wind

16.1km/h

Seasonal range

25.3°C

Frost days (< 0 °C)

88 d/yr

Hot days (≥ 30 °C)

41 d/yr

Rainy days (≥ 1 mm)

124 d/yr

Annual snowfall

44.2 cm

Average feels-like high

16.0 °C

Average feels-like low

5.7 °C

Average peak gust

36.1 km/h

Tropical nights (≥ 20 °C)

45 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 = 0.34 · 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

40.2 °C

14 July 1954

Coldest day

-31.0 °C

19 January 1994

Wettest day

99 mm

9 March 1964

Windiest day

45.3 km/h

14 September 2008

Strongest gust

107.6 km/h

30 January 2013

Hottest feels-like

43.3 °C

29 June 2012

Coldest feels-like

-36.4 °C

19 January 1994

Snowiest day

26.0 cm

22 March 1968

Sunniest day

14.7 h

11 June 2025

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.2 °C24 June 2025	-22.2 °C15 December 2025	13.1 °C	1,153 mm	52	83
2024	35.2 °C30 August 2024	-17.1 °C21 January 2024	14.3 °C	1,131 mm	53	51
2023	33.9 °C3 June 2023	-8.3 °C1 February 2023	14.1 °C	913 mm	37	53
2022	35.7 °C22 June 2022	-22.1 °C23 December 2022	13.2 °C	1,017 mm	50	88
2021	33.9 °C24 August 2021	-15.8 °C17 February 2021	13.6 °C	1,159 mm	44	74
2020	33.5 °C5 July 2020	-9.9 °C14 February 2020	13.5 °C	1,175 mm	44	62
2019	34.8 °C13 September 2019	-20.1 °C21 January 2019	13.5 °C	1,335 mm	63	81
2018	34.3 °C17 June 2018	-23.9 °C2 January 2018	13.3 °C	1,417 mm	57	83
2017	32.6 °C17 August 2017	-17.4 °C6 January 2017	13.8 °C	1,151 mm	33	67
2016	33.4 °C11 June 2016	-19.0 °C13 January 2016	13.8 °C	985 mm	59	78
2015	32.9 °C11 June 2015	-28.2 °C20 February 2015	12.9 °C	1,216 mm	32	78
2014	32.8 °C17 June 2014	-23.8 °C28 January 2014	11.6 °C	984 mm	24	95
2013	34.0 °C28 August 2013	-18.0 °C12 December 2013	12.4 °C	1,034 mm	32	98
2012	39.4 °C7 July 2012	-9.8 °C20 January 2012	14.3 °C	764 mm	65	65
2011	37.4 °C21 July 2011	-24.0 °C22 January 2011	13.4 °C	1,504 mm	60	74
2010	35.0 °C4 August 2010	-16.6 °C8 February 2010	13.0 °C	801 mm	67	90
2009	32.7 °C19 June 2009	-20.0 °C16 January 2009	12.4 °C	1,013 mm	21	76
2008	34.1 °C3 September 2008	-18.5 °C21 February 2008	12.3 °C	1,147 mm	37	95
2007	36.4 °C23 August 2007	-21.0 °C16 February 2007	13.6 °C	923 mm	70	86
2006	34.1 °C1 August 2006	-14.3 °C19 February 2006	13.3 °C	1,053 mm	35	68
2005	34.9 °C12 August 2005	-20.7 °C24 January 2005	12.9 °C	934 mm	46	86
2004	32.8 °C22 July 2004	-25.9 °C31 January 2004	12.6 °C	1,196 mm	17	87
2003	33.4 °C21 August 2003	-23.8 °C27 January 2003	12.0 °C	1,091 mm	26	96
2002	35.9 °C4 August 2002	-14.0 °C4 March 2002	13.3 °C	1,172 mm	63	92
2001	33.5 °C8 August 2001	-18.3 °C3 January 2001	13.2 °C	997 mm	31	73
2000	32.6 °C9 August 2000	-19.6 °C27 January 2000	12.3 °C	1,098 mm	20	89
1999	37.7 °C30 July 1999	-23.9 °C10 January 1999	13.1 °C	913 mm	52	78
1998	35.4 °C6 September 1998	-11.7 °C12 March 1998	14.0 °C	1,027 mm	44	61
1997	35.5 °C27 July 1997	-18.2 °C17 January 1997	11.8 °C	1,112 mm	24	87
1996	33.6 °C30 June 1996	-19.3 °C4 February 1996	11.7 °C	1,454 mm	35	100
1995	35.2 °C14 July 1995	-23.3 °C12 February 1995	12.3 °C	1,150 mm	48	98
1994	35.3 °C18 June 1994	-31.0 °C19 January 1994	12.6 °C	915 mm	46	78
1993	35.5 °C28 July 1993	-20.6 °C18 February 1993	12.0 °C	1,163 mm	44	90
1992	33.4 °C10 August 1992	-19.3 °C16 January 1992	12.1 °C	925 mm	11	74
1991	37.3 °C2 August 1991	-15.0 °C16 February 1991	13.6 °C	857 mm	62	83
1990	35.0 °C6 September 1990	-12.3 °C24 December 1990	13.5 °C	1,270 mm	37	65
1989	35.2 °C10 July 1989	-29.3 °C22 December 1989	11.8 °C	1,084 mm	34	94
1988	39.0 °C9 July 1988	-18.4 °C13 February 1988	12.3 °C	942 mm	59	98
1987	35.6 °C2 August 1987	-15.0 °C24 January 1987	13.2 °C	791 mm	56	75
1986	35.3 °C25 July 1986	-15.9 °C13 February 1986	13.1 °C	894 mm	58	79
1985	34.3 °C8 September 1985	-28.5 °C20 January 1985	12.3 °C	1,161 mm	30	88
1984	34.8 °C10 July 1984	-24.3 °C21 January 1984	12.4 °C	1,163 mm	48	82
1983	38.5 °C21 July 1983	-23.1 °C24 December 1983	12.7 °C	1,168 mm	74	82
1982	32.9 °C6 July 1982	-27.5 °C17 January 1982	12.3 °C	1,046 mm	23	91
1981	33.7 °C13 July 1981	-22.9 °C20 December 1981	12.0 °C	1,023 mm	33	94
1980	37.9 °C15 July 1980	-23.1 °C3 March 1980	11.9 °C	1,048 mm	57	99
1979	33.0 °C8 August 1979	-23.2 °C15 January 1979	11.4 °C	1,286 mm	14	97
1978	36.3 °C27 June 1978	-20.1 °C11 January 1978	11.1 °C	1,095 mm	41	94
1977	34.8 °C19 July 1977	-29.3 °C17 January 1977	12.1 °C	1,184 mm	48	89
1976	33.9 °C23 July 1976	-20.8 °C9 January 1976	11.4 °C	903 mm	24	107
1975	33.8 °C31 July 1975	-18.3 °C10 February 1975	12.8 °C	1,074 mm	46	90
1974	33.8 °C14 July 1974	-17.6 °C2 January 1974	12.3 °C	1,128 mm	28	77
1973	34.5 °C2 September 1973	-17.8 °C22 December 1973	13.1 °C	1,267 mm	44	80
1972	33.7 °C20 July 1972	-23.4 °C16 January 1972	11.6 °C	1,062 mm	23	92
1971	35.0 °C27 June 1971	-19.6 °C14 February 1971	12.5 °C	793 mm	31	89
1970	35.1 °C1 July 1970	-26.6 °C22 January 1970	12.3 °C	981 mm	44	90
1969	35.5 °C5 July 1969	-16.3 °C4 January 1969	11.6 °C	895 mm	35	107
1968	34.2 °C24 August 1968	-22.5 °C8 January 1968	11.8 °C	1,006 mm	41	93
1967	32.8 °C25 July 1967	-18.8 °C25 February 1967	11.8 °C	987 mm	22	90
1966	36.2 °C10 July 1966	-22.5 °C30 January 1966	11.6 °C	912 mm	55	95
1965	35.5 °C24 July 1965	-22.2 °C17 January 1965	12.2 °C	1,008 mm	30	96
1964	36.7 °C3 August 1964	-20.4 °C14 January 1964	12.5 °C	968 mm	54	93
1963	34.4 °C3 August 1963	-27.3 °C28 January 1963	11.2 °C	781 mm	25	100
1962	37.3 °C20 August 1962	-21.5 °C10 January 1962	11.9 °C	836 mm	47	101
1961	33.5 °C1 July 1961	-23.1 °C25 January 1961	11.8 °C	1,008 mm	37	93
1960	33.6 °C8 September 1960	-22.5 °C23 December 1960	11.4 °C	914 mm	36	112
1959	35.0 °C14 August 1959	-20.9 °C5 January 1959	12.9 °C	933 mm	69	98
1958	32.6 °C4 July 1958	-24.7 °C10 December 1958	11.0 °C	1,083 mm	27	103
1957	34.0 °C22 July 1957	-22.1 °C17 January 1957	12.6 °C	1,141 mm	41	83
1956	35.4 °C5 August 1956	-15.1 °C26 January 1956	12.5 °C	1,047 mm	34	83
1955	34.7 °C20 August 1955	-19.7 °C29 January 1955	12.7 °C	927 mm	58	97
1954	40.2 °C14 July 1954	-14.2 °C13 January 1954	13.2 °C	754 mm	64	80
1953	37.5 °C2 September 1953	-19.4 °C18 December 1953	13.3 °C	737 mm	69	76
1952	36.9 °C28 July 1952	-13.6 °C30 January 1952	12.9 °C	910 mm	55	86
1951	36.0 °C31 August 1951	-25.5 °C2 February 1951	11.9 °C	1,201 mm	46	94
1950	33.4 °C26 June 1950	-16.4 °C25 November 1950	11.6 °C	1,363 mm	15	110
1949	34.9 °C4 July 1949	-15.1 °C30 January 1949	13.1 °C	1,146 mm	48	77
1948	36.3 °C27 August 1948	-23.0 °C28 January 1948	12.2 °C	1,185 mm	38	81
1947	34.8 °C6 August 1947	-17.2 °C5 February 1947	11.4 °C	854 mm	36	112
1946	33.3 °C19 July 1946	-13.9 °C27 January 1946	12.7 °C	1,072 mm	17	78
1945	33.7 °C31 August 1945	-20.8 °C3 February 1945	11.8 °C	1,094 mm	34	95
1944	36.4 °C11 July 1944	-13.5 °C13 February 1944	12.3 °C	749 mm	50	104
1943	36.2 °C1 September 1943	-22.4 °C8 March 1943	11.2 °C	755 mm	39	115
1942	35.9 °C2 August 1942	-23.6 °C8 January 1942	11.5 °C	1,011 mm	22	103
1941	34.5 °C30 July 1941	-15.3 °C18 March 1941	11.8 °C	819 mm	28	108
1940	35.8 °C29 July 1940	-24.5 °C27 January 1940	10.5 °C	949 mm	36	111

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)

52 d/yr

+11

Frost days (< 0 °C)

83 d/yr

-5

Annual rainfall

1153 mm

+115 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	0.8 °C	-2.5 °C	59 mm	-22 mm
Feb	6.1 °C	+0.5 °C	132 mm	+52 mm
Mar	16.1 °C	+4.8 °C	112 mm	+6 mm
Apr	19.4 °C	+1.6 °C	150 mm	+44 mm
May	21.7 °C	-1.3 °C	113 mm	+6 mm
Jun	29.2 °C	+1.5 °C	133 mm	+41 mm
Jul	30.8 °C	+1.3 °C	147 mm	+58 mm
Aug	28.0 °C	-0.8 °C	41 mm	-30 mm
Sep	27.6 °C	+2.2 °C	57 mm	-10 mm
Oct	20.0 °C	+1.0 °C	87 mm	+19 mm
Nov	11.4 °C	-0.1 °C	58 mm	-29 mm
Dec	5.8 °C	+0.3 °C	65 mm	-20 mm

The year's extremes

Hottest day

35.2 °C

24 Jun 2025

Coldest day

-22.2 °C

15 Dec 2025

Wettest day

44.9 mm

16 Feb 2025

Windiest day

35.8 km/h

15 Apr 2025

Strongest gust

87.5 km/h

16 Mar 2025

Hottest feels-like

39.5 °C

26 Jul 2025

Coldest feels-like

-27.2 °C

15 Dec 2025

Snowiest day

9.1 cm

6 Jan 2025

Sunniest day

14.7 h

11 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 Forest Park?

Forest Park has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 12.4 °C and it receives 1,038 mm of precipitation per year.

What is the hottest day ever recorded in Forest Park?

The hottest day measured in Forest Park between 1940 and 2025 was 14 July 1954, reaching 40.2 °C.

What is the coldest day in Forest Park?

The coldest day measured in Forest Park between 1940 and 2025 was 19 January 1994, at -31.0 °C.

Does it snow in Forest Park?

Yes. Forest Park gets on average 44.2 cm of snow per year and has around 88 frost days.

Has the climate of Forest Park warmed?

Yes: Forest Park warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Forest Park?

The wettest day measured in Forest Park between 1940 and 2025 was 9 March 1964, with 99 mm of rain in 24 hours.

What was the windiest day in Forest Park?

The windiest day measured in Forest Park between 1940 and 2025 was 14 September 2008, with winds reaching 45.3 km/h.

What is the warmest month in Forest Park?

The warmest month in Forest Park is July (24.5 °C on average); the coldest is January (-0.8 °C).

How much does it rain in Forest Park?

Forest Park receives on average 1,038 mm of precipitation per year, spread over about 124 rainy days.

Is it sunny in Forest Park?

Forest Park gets on average 8.8 hours of sunshine per day, roughly 3,212 hours per year over 1940-2025.

What is the biggest single-day snowfall in Forest Park?

The heaviest 24-hour snowfall measured in Forest Park between 1940 and 2025 was 22 March 1968, with 26.0 cm.

Are there tropical nights in Forest Park?

Yes: Forest Park has on average 45 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Forest Park?

In Forest Park, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 29 June 2012, and the lowest was -36.4 °C on 19 January 1994.

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