United States · 1991–2020

Best time to visit
Suwanee.

May leads for comfortable weather in Suwanee: typically 25.8°C by day, 13°C at night, with 114 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortMay

Typical high25.8°C

Typical low13°C

Rain in May114 mm

Comfort

May

May · September · October

74climate match

Beach

August

August · June · July

69climate match

Outdoors

October

October · April · November

76climate match

The weakest month is January, scoring 9 against May’s 74 — days reach only 10.7°C, 13° below the 24°C the score treats as ideal, and nights drop to -0.8°C.

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

910.7° / -0.8°

Feb

1912.8° / 0.7°

Mar

3917.3° / 4.3°

Apr

6722.2° / 8.2°

May

7425.8° / 13°

Jun

5929.5° / 17.8°

Jul

5131° / 19.6°

Aug

5230.8° / 19.4°

Sep

7327.9° / 15.8°

Oct

7322.5° / 9.6°

Nov

4217.3° / 3.8°

Dec

1512.5° / 1°

Monthly climate evidence for Suwanee — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	10.7°C	-0.8°C	129 mm	9.4	10 h 07	9	Good coverage
February	12.8°C	0.7°C	128 mm	9	10 h 54	19	Good coverage
March	17.3°C	4.3°C	136 mm	9.5	11 h 52	39	Good coverage
April	22.2°C	8.2°C	112 mm	7.7	12 h 59	67	Good coverage
May	25.8°C	13°C	114 mm	9.2	13 h 55	74	Good coverage
June	29.5°C	17.8°C	119 mm	9.8	14 h 25	59	Good coverage
July	31°C	19.6°C	123 mm	9.3	14 h 13	51	Good coverage
August	30.8°C	19.4°C	122 mm	8.7	13 h 25	52	Good coverage
September	27.9°C	15.8°C	106 mm	6.4	12 h 21	73	Good coverage
October	22.5°C	9.6°C	102 mm	6.2	11 h 16	73	Good coverage
November	17.3°C	3.8°C	117 mm	7.1	10 h 21	42	Good coverage
December	12.5°C	1°C	144 mm	9.8	9 h 54	15	Good coverage

Records at CUMMING 2N, 2001–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	25.0°C30 Jan 2002	-15.6°C7 Jan 2014	93 mm6 Jan 2009	246 mm2023 · driest 8 mm in 2011	24
February	25.6°C8 Feb 2019	-11.1°C1 Feb 2026	71 mm14 Feb 2025	292 mm2020 · driest 25 mm in 2011	23
March	31.1°C26 Mar 2007	-8.9°C3 Mar 2009	94 mm6 Mar 2003	256 mm2011 · driest 35 mm in 2016	23
April	30.6°C19 Apr 2002	-3.9°C8 Apr 2007	84 mm7 Apr 2014	206 mm2020 · driest 29 mm in 2010	23
May	33.3°C30 May 2019	1.1°C5 May 2011	82 mm5 May 2013	381 mm2017 · driest 41 mm in 2016	23
June	37.8°C30 Jun 2012	9.4°C6 Jun 2006	57 mm1 Jun 2014	270 mm2025 · driest 37 mm in 2009	23
July	38.3°C1 Jul 2012	12.2°C20 Jul 2009	137 mm9 Jul 2022	394 mm2005 · driest 14 mm in 2002	26
August	37.8°C23 Aug 2007	11.7°C14 Aug 2004	86 mm8 Aug 2005	265 mm2005 · driest 27 mm in 2024	24
September	35.0°C11 Sep 2002	5.0°C29 Sep 2003	133 mm17 Sep 2004	315 mm2004 · driest 5 mm in 2019	25
October	35.6°C3 Oct 2019	-1.7°C24 Oct 2006	83 mm2 Oct 2012	263 mm2009 · driest 1 mm in 2024	24
November	28.3°C2 Nov 2016	-9.4°C22 Nov 2008	98 mm11 Nov 2009	267 mm2015 · driest 22 mm in 2017	24
December	25.0°C27 Dec 2025	-15.6°C24 Dec 2022	102 mm28 Dec 2018	324 mm2018 · driest 37 mm in 2006	24

Typical days per month at CUMMING 2N, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	<1	0	18	4	<1
February	<1	0	14	4	<1
March	3	<1	8	4	0
April	11	<1	1	3	0
May	20	4	0	4	0
June	27	14	0	4	0
July	29	21	0	4	0
August	29	21	0	3	0
September	23	10	0	3	0
October	11	<1	<1	3	0
November	<1	0	8	3	0
December	<1	0	14	5	<1

How often, not how much — every day in CUMMING 2N’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	4%	32%	15%	38%	8.0–13.6°C
February	9%	32%	15%	39%	10.4–16.9°C
March	30%	33%	15%	40%	15.1–21.0°C
April	56%	27%	14%	31%	20.7–24.0°C
May	64%	28%	12%	33%	24.0–27.2°C
June	65%	29%	12%	35%	27.7–31.2°C
July	68%	31%	13%	37%	29.4–32.9°C
August	70%	26%	11%	28%	29.1–32.6°C
September	78%	23%	10%	23%	25.9–30.3°C
October	61%	19%	8%	19%	20.7–24.7°C
November	29%	25%	12%	27%	14.6–19.6°C
December	7%	31%	14%	38%	10.0–16.1°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.

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 4225309
NOAA station: USC00092408 · CUMMING 2N
Station distance: 20.4 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 17 usable years
Daylight: Calculated from latitude 34.05°, 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 CUMMING 2N is what differs

Milton→Sugar Hill→Buford→Cumming→Dawsonville→Rest Haven→

Or put two places side by side: Suwanee vs Milton

Best time to visitSuwanee.

May

August

October

The whole year,without the guesswork.

Nearby, measured,and named.

Best time to visit
Suwanee.

The whole year,
without the guesswork.

Nearby, measured,
and named.