United States · 1991–2020

Best time to visit
Speedway.

September leads for comfortable weather in Speedway: typically 25.6°C by day, 14.1°C at night, with 72 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.6°C

Typical low14.1°C

Rain in September72 mm

Comfort

September

September · May · August

85climate match

Beach

August

August · July · September

78climate match

Outdoors

October

October · April · September

76climate match

The weakest month is January, scoring 5 against September’s 85 — days reach only 2.4°C, 22° 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

52.4° / -6.1°

Feb

54.7° / -4.4°

Mar

2011° / 0.7°

Apr

4817.8° / 6.3°

May

7523.1° / 12.2°

Jun

6427.6° / 17.2°

Jul

6129.2° / 19.1°

Aug

6828.6° / 18.3°

Sep

8525.6° / 14.1°

Oct

5618.3° / 7.5°

Nov

2411° / 1.6°

Dec

54.6° / -3.3°

Monthly climate evidence for Speedway — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2.4°C	-6.1°C	70 mm	7.3	9 h 38	5	Good coverage
February	4.7°C	-4.4°C	61 mm	7.4	10 h 38	5	Good coverage
March	11°C	0.7°C	82 mm	8.8	11 h 49	20	Good coverage
April	17.8°C	6.3°C	108 mm	9.2	13 h 12	48	Good coverage
May	23.1°C	12.2°C	107 mm	10.8	14 h 21	75	Good coverage
June	27.6°C	17.2°C	135 mm	10	14 h 58	64	Good coverage
July	29.2°C	19.1°C	100 mm	8.4	14 h 44	61	Good coverage
August	28.6°C	18.3°C	86 mm	7	13 h 44	68	Good coverage
September	25.6°C	14.1°C	72 mm	6.3	12 h 24	85	Good coverage
October	18.3°C	7.5°C	90 mm	7.4	11 h 05	56	Good coverage
November	11°C	1.6°C	73 mm	7.5	9 h 56	24	Good coverage
December	4.6°C	-3.3°C	75 mm	8.5	9 h 22	5	Good coverage

Records at INDIANAPOLIS EAGLE CREEK AP, 1996–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C12 Jan 2005	-25.5°C7 Jan 2014	60 mm3 Jan 2005	223 mm2005 · driest 8 mm in 2026	30
February	24.4°C20 Feb 2018	-23.2°C11 Feb 2014	66 mm11 Feb 2009	139 mm2011 · driest 19 mm in 2015	30
March	30.0°C22 Mar 2026	-17.1°C6 Mar 2015	62 mm3 Mar 2023	162 mm2023 · driest 22 mm in 2001	30
April	30.6°C30 Apr 2007	-6.1°C9 Apr 1997	83 mm19 Apr 2011	205 mm2011 · driest 22 mm in 2020	30
May	35.6°C28 May 2018	-1.0°C9 May 2020	70 mm30 May 2008	211 mm2008 · driest 41 mm in 2005	30
June	39.4°C28 Jun 2012	4.4°C1 Jun 2003	89 mm16 Jun 2000	262 mm2008 · driest 5 mm in 2012	30
July	38.9°C6 Jul 2012	10.0°C2 Jul 2001	76 mm11 Jul 2017	190 mm2025 · driest 11 mm in 2012	31
August	36.1°C2 Aug 2012	8.3°C15 Aug 2014	96 mm4 Aug 2009	213 mm2012 · driest 7 mm in 2021	30
September	36.1°C2 Sep 2011	2.8°C24 Sep 2012	73 mm19 Sep 2011	181 mm2012 · driest 9 mm in 2020	30
October	32.8°C7 Oct 2007	-4.4°C28 Oct 1997	57 mm31 Oct 2013	216 mm2021 · driest 12 mm in 2024	30
November	26.1°C8 Nov 2020	-14.3°C13 Nov 2019	45 mm23 Nov 2014	121 mm2004 · driest 19 mm in 1999	30
December	22.8°C6 Dec 1998	-22.7°C23 Dec 2022	59 mm21 Dec 2013	144 mm2008 · driest 24 mm in 2017	30

Typical days per month at INDIANAPOLIS EAGLE CREEK AP, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)
January	0	0	26	2
February	0	0	23	2
March	<1	0	16	3
April	4	0	3	3
May	13	2	0	4
June	23	10	0	4
July	29	15	0	3
August	28	11	0	3
September	18	6	0	2
October	5	<1	2	3
November	<1	0	13	2
December	0	0	23	3

How often, not how much — every day in INDIANAPOLIS EAGLE CREEK 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	0%	22%	8%	24%	-0.9–5.8°C
February	1%	24%	7%	24%	0.1–9.0°C
March	10%	29%	11%	36%	8.5–15.2°C
April	28%	31%	11%	41%	16.1–20.6°C
May	50%	35%	12%	45%	20.9–25.9°C
June	67%	32%	13%	40%	26.4–29.4°C
July	73%	28%	10%	29%	27.3–30.8°C
August	78%	22%	9%	20%	27.5–30.0°C
September	73%	20%	7%	19%	23.0–27.6°C
October	36%	24%	9%	25%	16.3–20.9°C
November	8%	24%	7%	24%	7.3–14.3°C
December	<1%	28%	8%	30%	2.7–8.4°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.

1997Each stripe is one year’s mean temperature against the 29-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4265146
NOAA station: USW00053842 · INDIANAPOLIS EAGLE CREEK AP
Station distance: 3.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 22 usable years
Daylight: Calculated from latitude 39.80°, 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 INDIANAPOLIS EAGLE CREEK AP is what differs

Brownsburg→Fairfield Heights→Avon→Clermont→Rocky Ripple→Wynnedale→

Or put two places side by side: Speedway vs Brownsburg

Best time to visitSpeedway.