United States · 1991–2020

Best time to visit
Whitehall.

September leads for comfortable weather in Whitehall: typically 25.5°C by day, 13.9°C at night, with 80 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.5°C

Typical low13.9°C

Rain in September80 mm

Comfort

September

September · May · June

83climate match

Beach

August

August · July · June

76climate match

Outdoors

October

October · April · May

79climate match

The weakest month is January, scoring 5 against September’s 83 — days reach only 2.8°C, 21° below the 24°C the score treats as ideal.

Month by month

The whole year,
without the guesswork.

The bars show the comfort score. Day and night temperatures come from daily observed highs and lows; rain is the historical monthly estimate.

Jan

52.8° / -5.3°

Feb

54.9° / -4.1°

Mar

1510.6° / 0.3°

Apr

4817.8° / 5.9°

May

7523.3° / 11.7°

Jun

6827.9° / 16.7°

Jul

5729.7° / 18.8°

Aug

6629° / 18°

Sep

8325.5° / 13.9°

Oct

5918.6° / 7.4°

Nov

2511.3° / 1.9°

Dec

55.3° / -2.3°

Monthly climate evidence for Whitehall — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.8°C	-5.3°C	76 mm	9.8	9 h 37	5	Strong coverage
February	4.9°C	-4.1°C	61 mm	8.8	10 h 37	5	Strong coverage
March	10.6°C	0.3°C	92 mm	9.7	11 h 49	15	Strong coverage
April	17.8°C	5.9°C	98 mm	10.3	13 h 12	48	Strong coverage
May	23.3°C	11.7°C	101 mm	11.3	14 h 22	75	Strong coverage
June	27.9°C	16.7°C	110 mm	9.3	14 h 59	68	Strong coverage
July	29.7°C	18.8°C	119 mm	9.1	14 h 45	57	Strong coverage
August	29°C	18°C	95 mm	7.6	13 h 45	66	Strong coverage
September	25.5°C	13.9°C	80 mm	7	12 h 24	83	Strong coverage
October	18.6°C	7.4°C	74 mm	7.7	11 h 04	59	Strong coverage
November	11.3°C	1.9°C	71 mm	8	9 h 55	25	Strong coverage
December	5.3°C	-2.3°C	80 mm	8.9	9 h 21	5	Strong coverage

What has changed

Whitehall runs +1.5°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.7

Feb

+2.4

Mar

+1.5

Apr

+1.3

May

+1.5

Jun

+1.1

Jul

+1.1

Aug

+1.0

Sep

+1.7

Oct

+1.2

Nov

+0.7

Dec

+2.7

September daytime highs, 2011–2025. Last recorded: 28.1°C.

Records at JOHN GLENN INTL AP, 1948–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	23.3°C25 Jan 1950	-30.0°C19 Jan 1994	122 mm21 Jan 1959	227 mm2005 · driest 17 mm in 1961	79
February	25.6°C24 Feb 2017	-25.0°C2 Feb 1951	55 mm23 Feb 1975	156 mm2022 · driest 8 mm in 1978	79
March	30.0°C22 Mar 2026	-21.1°C9 Mar 1984	86 mm9 Mar 1964	244 mm1964 · driest 26 mm in 1979	79
April	31.7°C26 Apr 1948	-10.0°C7 Apr 1982	57 mm16 Apr 1998	182 mm2011 · driest 17 mm in 1971	79
May	33.9°C31 May 1953	-3.9°C10 May 1966	68 mm28 May 2000	232 mm1968 · driest 24 mm in 1977	79
June	38.3°C25 Jun 1988	1.7°C11 Jun 1972	73 mm11 Jun 2004	264 mm2008 · driest 17 mm in 1999	79
July	40.0°C14 Jul 1954	6.1°C6 Jul 1972	130 mm13 Jul 1992	314 mm1992 · driest 25 mm in 1951	79
August	38.3°C20 Aug 1983	3.9°C29 Aug 1965	81 mm5 Aug 1995	291 mm2003 · driest 15 mm in 1951	78
September	37.8°C2 Sep 1953	-0.6°C30 Sep 1963	68 mm14 Sep 1979	174 mm2003 · driest 13 mm in 1963	78
October	34.4°C1 Oct 2019	-8.3°C21 Oct 1952	59 mm23 Oct 2007	170 mm2006 · driest 3 mm in 1963	78
November	26.7°C1 Nov 2016	-20.0°C30 Nov 1958	61 mm10 Nov 1985	271 mm1985 · driest 11 mm in 2009	78
December	24.4°C3 Dec 1982	-27.2°C22 Dec 1989	65 mm21 Dec 1998	177 mm1990 · driest 12 mm in 1955	78

Typical days per month at JOHN GLENN INTL AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	2	9
February	<1	0	22	2	7
March	<1	0	17	3	4
April	4	<1	4	4	1
May	13	4	<1	3	0
June	24	11	0	4	0
July	29	16	0	4	0
August	29	13	0	3	0
September	18	5	0	3	0
October	5	<1	2	2	<1
November	<1	0	12	2	2
December	0	0	22	3	6

How often, not how much — every day in JOHN GLENN INTL AP’s record sorted by what it was actually like, rather than averaged
Month	Warm & dry days	Wet days	Washouts	Week with 3+ wet days	Daytime mean has ranged
January	<1%	30%	7%	38%	-1.5–6.3°C
February	<1%	29%	7%	35%	0.9–8.0°C
March	8%	32%	9%	42%	7.3–13.7°C
April	25%	34%	11%	44%	14.7–19.7°C
May	49%	34%	12%	43%	20.2–26.0°C
June	68%	30%	12%	37%	25.9–29.4°C
July	71%	29%	12%	32%	27.7–31.4°C
August	75%	25%	10%	25%	26.9–30.5°C
September	70%	23%	9%	20%	22.9–27.8°C
October	35%	24%	6%	25%	16.4–21.1°C
November	7%	29%	8%	33%	7.7–14.0°C
December	<1%	30%	8%	37%	0.8–8.1°C

A warm and dry day reaches 20°C with under 1 mm of rain; a wet day gets 1 mm or more; a washout gets 10 mm or more. The week column is the share of seven-day stretches in that month, across the station’s whole daily record, that contained three or more wet days — the odds a week-long trip is rained on repeatedly, counted rather than modelled. The last column is the 10th to 90th percentile of that month’s daytime average across individual years: a narrow band means the average is what you will get, a wide one means the average is a midpoint between years that felt quite different.

1948Each stripe is one year’s mean temperature against the 78-year average. Warmest: 2024. Coolest: 1976.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4528291
NOAA station: USW00014821 · JOHN GLENN INTL AP
Station distance: 2.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 30 usable years
Daylight: Calculated from latitude 39.97°, mid-month, sunrise to sunset including refraction. Not a station measurement.
Important limit: Historical climate is not a forecast. Nearby stations can miss mountains, coasts, and local microclimates.

These places read the same station, so their numbers are identical — distance from JOHN GLENN INTL AP is what differs

Reynoldsburg→Gahanna→Pataskala→Bexley→New Albany→Etna→

Or put two places side by side: Whitehall vs Reynoldsburg

Best time to visitWhitehall.