United States · 1991–2020

Best time to visit
Westfield.

September leads for comfortable weather in Westfield: typically 25.7°C by day, 12.8°C at night, with 91 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.7°C

Typical low12.8°C

Rain in September91 mm

Comfort

September

September · May · August

80climate match

Beach

July

July · August · June

74climate match

Outdoors

October

October · May · September

75climate match

The weakest month is January, scoring 5 against September’s 80 — days reach only 2°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° / -7.4°

Feb

54° / -6.1°

Mar

1310.2° / -1.1°

Apr

4217.2° / 4.9°

May

7022.7° / 10.7°

Jun

6527.6° / 16.1°

Jul

6429.4° / 17.9°

Aug

7028.7° / 16.9°

Sep

8025.7° / 12.8°

Oct

5418.4° / 6.2°

Nov

2211.3° / 0.5°

Dec

54.4° / -4.6°

Monthly climate evidence for Westfield — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	2°C	-7.4°C	77 mm	8.3	9 h 37	5	Good coverage
February	4°C	-6.1°C	67 mm	7.3	10 h 37	5	Good coverage
March	10.2°C	-1.1°C	87 mm	8.3	11 h 49	13	Good coverage
April	17.2°C	4.9°C	112 mm	9.8	13 h 12	42	Good coverage
May	22.7°C	10.7°C	117 mm	10.3	14 h 22	70	Good coverage
June	27.6°C	16.1°C	139 mm	10.3	15 h	65	Good coverage
July	29.4°C	17.9°C	98 mm	7.4	14 h 45	64	Good coverage
August	28.7°C	16.9°C	88 mm	7.4	13 h 45	70	Good coverage
September	25.7°C	12.8°C	91 mm	6.4	12 h 24	80	Good coverage
October	18.4°C	6.2°C	88 mm	7.1	11 h 04	54	Good coverage
November	11.3°C	0.5°C	79 mm	7.7	9 h 54	22	Good coverage
December	4.4°C	-4.6°C	75 mm	8.4	9 h 20	5	Good coverage

Records at CARMEL 3 E, 1998–2025
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	19.4°C8 Jan 2008	-25.6°C31 Jan 2019	53 mm13 Jan 2013	218 mm2005 · driest 17 mm in 2001	27
February	23.9°C12 Feb 1999	-22.8°C24 Feb 2015	97 mm28 Feb 2011	174 mm2011 · driest 8 mm in 2004	27
March	28.3°C22 Mar 2012	-17.2°C6 Mar 2015	65 mm5 Mar 2011	158 mm2007 · driest 18 mm in 2005	26
April	30.6°C20 Apr 2002	-5.6°C8 Apr 2018	85 mm19 Apr 2013	236 mm2013 · driest 31 mm in 2004	26
May	34.4°C29 May 2018	-2.8°C9 May 2020	72 mm13 May 2002	268 mm2017 · driest 35 mm in 2007	25
June	39.4°C29 Jun 2012	3.9°C1 Jun 2003	67 mm4 Jun 2008	288 mm2010 · driest 28 mm in 2012	26
July	38.9°C9 Jul 2012	7.8°C6 Jul 2001	82 mm5 Jul 2003	297 mm2003 · driest 29 mm in 2007	26
August	36.7°C9 Aug 2007	5.6°C20 Aug 2000	61 mm30 Aug 2022	248 mm2016 · driest 17 mm in 2010	25
September	36.7°C2 Sep 2011	-5.6°C23 Sep 1999	117 mm1 Sep 2003	216 mm2003 · driest 11 mm in 2004	26
October	32.8°C8 Oct 2007	-3.9°C31 Oct 2023	57 mm21 Oct 2020	222 mm2001 · driest 3 mm in 2025	26
November	25.6°C1 Nov 1999	-14.4°C14 Nov 2019	49 mm17 Nov 2013	143 mm2011 · driest 23 mm in 1999	26
December	22.8°C7 Dec 1998	-23.3°C23 Dec 2022	67 mm27 Dec 2015	148 mm2011 · driest 20 mm in 2005	26

Typical days per month at CARMEL 3 E, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	26	3	5
February	0	0	23	2	3
March	<1	0	19	3	2
April	3	<1	6	4	<1
May	12	2	<1	4	0
June	23	10	0	4	0
July	27	15	0	3	0
August	26	11	0	3	0
September	18	6	0	3	0
October	5	<1	4	3	0
November	<1	0	15	3	<1
December	0	0	23	3	2

How often, not how much — every day in CARMEL 3 E’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%	27%	9%	29%	-1.6–5.4°C
February	<1%	26%	7%	27%	-0.3–7.5°C
March	7%	27%	10%	31%	7.6–13.8°C
April	23%	33%	13%	46%	14.9–19.6°C
May	48%	33%	14%	39%	20.5–25.7°C
June	65%	33%	15%	41%	26.0–29.0°C
July	75%	26%	10%	26%	27.2–31.6°C
August	76%	23%	10%	20%	27.1–29.9°C
September	72%	21%	8%	20%	23.5–27.5°C
October	35%	21%	9%	21%	17.0–20.6°C
November	8%	25%	9%	27%	7.7–13.5°C
December	<1%	27%	9%	33%	1.1–7.8°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.

1999Each stripe is one year’s mean temperature against the 21-year average. Warmest: 2012. Coolest: 2014.2024

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4928118
NOAA station: USC00121303 · CARMEL 3 E
Station distance: 10.8 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 20 usable years
Daylight: Calculated from latitude 40.04°, 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 CARMEL 3 E is what differs

Carmel→Fishers→Noblesville→Brooks→Chesterton→College Crest→

Or put two places side by side: Westfield vs Carmel

Best time to visitWestfield.