United States · 1991–2020

Best time to visit
Fairfield.

August leads for comfortable weather in Fairfield: typically 25.1°C by day, 14.9°C at night, with 92 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortAugust

Typical high25.1°C

Typical low14.9°C

Rain in August92 mm

Comfort

August

August · June · July

83climate match

Beach

July

July · August · June

58climate match

Outdoors

September

September · May · June

80climate match

The weakest month is January, scoring 5 against August’s 83 — days reach only -3°C, 27° 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

5-3° / -12.4°

Feb

5-1.8° / -11.5°

Mar

53.2° / -6.2°

Apr

2412° / 1.5°

May

6019° / 7.9°

Jun

8124.3° / 14°

Jul

7625.9° / 16.2°

Aug

8325.1° / 14.9°

Sep

6520.5° / 10.2°

Oct

3113.3° / 4.4°

Nov

56.8° / -0.7°

Dec

50.3° / -7.7°

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°C	-12.4°C	61 mm	9.5	9 h 09	5	Good coverage
February	-1.8°C	-11.5°C	48 mm	7.1	10 h 21	5	Good coverage
March	3.2°C	-6.2°C	69 mm	9	11 h 46	5	Good coverage
April	12°C	1.5°C	78 mm	9.8	13 h 25	24	Good coverage
May	19°C	7.9°C	73 mm	8.9	14 h 48	60	Good coverage
June	24.3°C	14°C	99 mm	10.9	15 h 34	81	Good coverage
July	25.9°C	16.2°C	101 mm	10.5	15 h 16	76	Good coverage
August	25.1°C	14.9°C	92 mm	9	14 h 03	83	Good coverage
September	20.5°C	10.2°C	98 mm	9.1	12 h 28	65	Good coverage
October	13.3°C	4.4°C	94 mm	9.6	10 h 53	31	Good coverage
November	6.8°C	-0.7°C	78 mm	9	9 h 30	5	Good coverage
December	0.3°C	-7.7°C	64 mm	9.7	8 h 49	5	Good coverage

Records at ST ALBANS RADIO, 1978–2010
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	17.8°C15 Jan 1995	-35.0°C3 Jan 1981	47 mm9 Jan 1998	153 mm1998 · driest 11 mm in 1980	30
February	17.2°C22 Feb 1981	-33.9°C7 Feb 1993	36 mm15 Feb 2000	113 mm1981 · driest 3 mm in 1978	31
March	25.6°C16 Mar 1990	-27.2°C7 Mar 1989	50 mm6 Mar 2001	168 mm2001 · driest 16 mm in 1996	31
April	31.1°C27 Apr 1990	-14.4°C5 Apr 1995	50 mm28 Apr 2010	167 mm1983 · driest 8 mm in 2001	30
May	33.3°C27 May 2010	-3.9°C13 May 2005	79 mm23 May 1984	191 mm2006 · driest 26 mm in 1980	29
June	35.6°C12 Jun 2005	-0.6°C3 Jun 1986	88 mm7 Jun 1984	211 mm2006 · driest 26 mm in 1980	28
July	35.0°C8 Jul 2010	3.3°C4 Jul 1982	58 mm15 Jul 1997	172 mm2009 · driest 36 mm in 2005	30
August	35.6°C10 Aug 2001	2.2°C21 Aug 1982	77 mm12 Aug 1998	184 mm1980 · driest 39 mm in 1993	30
September	32.2°C5 Sep 1999	-10.0°C29 Sep 2000	71 mm17 Sep 1999	191 mm1999 · driest 49 mm in 1988	28
October	26.7°C22 Oct 1979	-9.4°C10 Oct 2000	52 mm21 Oct 1995	185 mm2005 · driest 29 mm in 1994	29
November	22.8°C8 Nov 1996	-18.9°C24 Nov 1989	46 mm9 Nov 1996	184 mm1983 · driest 15 mm in 1998	29
December	17.8°C7 Dec 2001	-31.7°C25 Dec 1980	53 mm2 Dec 1996	133 mm1983 · driest 22 mm in 1998	29

Typical days per month at ST ALBANS RADIO, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	2	10
February	0	0	26	2	8
March	<1	0	26	2	6
April	<1	<1	13	3	3
May	4	<1	<1	2	<1
June	14	4	0	3	0
July	20	4	0	3	0
August	17	3	0	3	0
September	5	<1	<1	3	0
October	<1	0	7	3	<1
November	0	0	17	3	3
December	0	0	27	2	9

How often, not how much — every day in ST ALBANS RADIO’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%	32%	6%	43%	-7.9–0.3°C
February	0%	25%	5%	26%	-6.5–1.0°C
March	<1%	30%	7%	41%	0.4–5.5°C
April	7%	34%	9%	43%	9.1–14.6°C
May	32%	32%	9%	40%	16.7–20.7°C
June	56%	33%	10%	43%	21.7–25.2°C
July	66%	32%	10%	41%	24.1–27.7°C
August	65%	30%	11%	36%	23.6–26.4°C
September	38%	29%	9%	39%	18.4–21.7°C
October	9%	32%	10%	40%	10.7–15.1°C
November	<1%	33%	9%	43%	4.5–9.2°C
December	0%	32%	6%	39%	-3.6–3.4°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.

1978Each stripe is one year’s mean temperature against the 23-year average. Warmest: 1998. Coolest: 1978.2008

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5236015
NOAA station: USC00437032 · ST ALBANS RADIO
Station distance: 13.1 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 15 usable years
Daylight: Calculated from latitude 44.80°, 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 ST ALBANS RADIO is what differs

Saint Albans→Swanton→Maquam→Camp Maquam→East Highgate→Fletcher→

Or put two places side by side: Fairfield vs Saint Albans

Best time to visitFairfield.