United States · 1991–2020

Best time to visit
Fairfield.

September leads for comfortable weather in Fairfield: typically 26.9°C by day, 13.1°C at night, with 83 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high26.9°C

Typical low13.1°C

Rain in September83 mm

Comfort

September

September · May · June

77climate match

Beach

August

August · July · June

72climate match

Outdoors

October

October · April · September

81climate match

The weakest month is January, scoring 5 against September’s 77 — days reach only 3.7°C, 20° 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

53.7° / -5.9°

Feb

56.1° / -4.7°

Mar

1711.8° / -0.3°

Apr

4619° / 5.1°

May

7224.4° / 11.2°

Jun

6528.9° / 16.2°

Jul

5631.1° / 18.4°

Aug

6330.6° / 17.3°

Sep

7726.9° / 13.1°

Oct

6120° / 6.3°

Nov

2512.3° / 0.6°

Dec

56.1° / -3.1°

Monthly climate evidence for Fairfield — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	3.7°C	-5.9°C	86 mm	8	9 h 41	5	Strong coverage
February	6.1°C	-4.7°C	75 mm	6.9	10 h 39	5	Strong coverage
March	11.8°C	-0.3°C	99 mm	9.4	11 h 49	17	Strong coverage
April	19°C	5.1°C	126 mm	10.2	13 h 11	46	Strong coverage
May	24.4°C	11.2°C	125 mm	10.7	14 h 19	72	Strong coverage
June	28.9°C	16.2°C	112 mm	9.7	14 h 55	65	Strong coverage
July	31.1°C	18.4°C	102 mm	8.3	14 h 41	56	Strong coverage
August	30.6°C	17.3°C	88 mm	6.7	13 h 42	63	Strong coverage
September	26.9°C	13.1°C	83 mm	6	12 h 24	77	Strong coverage
October	20°C	6.3°C	83 mm	7	11 h 06	61	Strong coverage
November	12.3°C	0.6°C	80 mm	7.4	9 h 58	25	Strong coverage
December	6.1°C	-3.1°C	88 mm	8	9 h 24	5	Strong coverage

Records at FAIRFIELD, 1985–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.6°C29 Jan 2002	-30.6°C20 Jan 1994	65 mm4 Jan 2000	180 mm2005 · driest 27 mm in 2001	41
February	25.6°C24 Feb 2017	-26.7°C24 Feb 2015	60 mm2 Feb 1988	183 mm2018 · driest 24 mm in 1992	41
March	31.7°C23 Mar 2026	-17.2°C6 Mar 2015	97 mm19 Mar 2008	291 mm2008 · driest 34 mm in 2001	41
April	32.2°C27 Apr 1986	-8.3°C3 Apr 2013	93 mm16 Apr 1998	359 mm2011 · driest 29 mm in 1997	40
May	34.4°C26 May 2012	-1.7°C10 May 2020	119 mm16 May 1996	304 mm1996 · driest 22 mm in 2007	41
June	39.4°C28 Jun 2012	-0.6°C3 Jun 2013	91 mm15 Jun 2025	277 mm2025 · driest 26 mm in 1991	41
July	41.1°C7 Jul 2012	8.3°C24 Jul 2026	134 mm28 Jul 2023	239 mm1992 · driest 31 mm in 2002	41
August	40.0°C18 Aug 1988	5.0°C29 Aug 1986	90 mm29 Aug 1994	183 mm2016 · driest 19 mm in 2007	40
September	38.3°C9 Sep 2002	0.6°C23 Sep 1995	104 mm5 Sep 2022	271 mm2018 · driest 2 mm in 2019	40
October	35.6°C3 Oct 2019	-5.6°C31 Oct 1988	90 mm23 Oct 2007	187 mm1990 · driest 13 mm in 2024	41
November	28.3°C1 Nov 2016	-12.2°C14 Nov 2019	83 mm5 Nov 2017	197 mm2011 · driest 19 mm in 2009	40
December	23.3°C7 Dec 1998	-28.3°C23 Dec 1989	69 mm22 Dec 1998	232 mm1990 · driest 26 mm in 1992	39

Typical days per month at FAIRFIELD, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	25	3	1
February	0	0	22	3	<1
March	1	0	17	3	<1
April	6	<1	5	4	0
May	16	6	<1	4	0
June	26	14	0	4	0
July	30	21	0	3	0
August	30	20	0	3	0
September	21	9	0	3	0
October	7	1	3	3	<1
November	<1	0	15	3	<1
December	0	0	23	3	1

How often, not how much — every day in FAIRFIELD’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%	25%	9%	26%	0.3–7.6°C
February	1%	26%	9%	28%	2.4–9.5°C
March	11%	30%	11%	38%	8.9–15.4°C
April	30%	34%	13%	47%	17.0–21.6°C
May	53%	36%	14%	48%	22.1–27.2°C
June	67%	32%	13%	37%	27.7–30.5°C
July	73%	28%	12%	30%	29.5–33.1°C
August	78%	22%	9%	21%	29.0–32.1°C
September	76%	20%	9%	16%	25.2–29.3°C
October	42%	23%	8%	23%	18.1–22.3°C
November	10%	26%	10%	28%	9.6–15.6°C
December	<1%	27%	10%	31%	3.5–9.2°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.

1986Each stripe is one year’s mean temperature against the 38-year average. Warmest: 2024. Coolest: 2014.2025

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4511283
NOAA station: USC00332651 · FAIRFIELD
Station distance: 2.5 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 29 usable years
Daylight: Calculated from latitude 39.35°, 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 FAIRFIELD is what differs

Oxford→Northgate→New Burlington→Pleasant Run→Pleasant Run Farm→Ross→

Or put two places side by side: Fairfield vs Oxford

Best time to visitFairfield.