United States · 1991–2020

Best time to visit
Graham.

September leads for comfortable weather in Graham: typically 25.8°C by day, 12.1°C at night, with 89 mm of rain. Based on measured 1991–2020 NOAA station history.

Best comfortSeptember

Typical high25.8°C

Typical low12.1°C

Rain in September89 mm

Comfort

September

September · May · June

78climate match

Beach

August

August · July · June

70climate match

Outdoors

October

October · April · September

77climate match

The weakest month is January, scoring 5 against September’s 78 — days reach only 1°C, 23° 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

51° / -10.1°

Feb

53.8° / -7.9°

Mar

2110.8° / -1.7°

Apr

4517.3° / 4°

May

6923° / 10.8°

Jun

6428.3° / 16.4°

Jul

5430.4° / 18.6°

Aug

6329.6° / 17.3°

Sep

7825.8° / 12.1°

Oct

5719° / 5.1°

Nov

2310.6° / -1.6°

Dec

53.6° / -7.2°

Monthly climate evidence for Graham — daylight is calculated from latitude, everything else is measured
Month	Day	Night	Rain	Wet days	Daylight	Comfort	Coverage
January	1°C	-10.1°C	24 mm	3.9	9 h 36	5	Strong coverage
February	3.8°C	-7.9°C	31 mm	4.4	10 h 36	5	Strong coverage
March	10.8°C	-1.7°C	56 mm	6.1	11 h 49	21	Strong coverage
April	17.3°C	4°C	97 mm	8.4	13 h 13	45	Strong coverage
May	23°C	10.8°C	137 mm	9.9	14 h 23	69	Strong coverage
June	28.3°C	16.4°C	133 mm	9.5	15 h 01	64	Strong coverage
July	30.4°C	18.6°C	132 mm	8	14 h 46	54	Strong coverage
August	29.6°C	17.3°C	110 mm	7.5	13 h 45	63	Strong coverage
September	25.8°C	12.1°C	89 mm	6.4	12 h 24	78	Strong coverage
October	19°C	5.1°C	77 mm	6.3	11 h 04	57	Strong coverage
November	10.6°C	-1.6°C	45 mm	4.7	9 h 54	23	Strong coverage
December	3.6°C	-7.2°C	39 mm	4.2	9 h 19	5	Strong coverage

What has changed

Graham runs +1.0°C
on the 1961–1990 baseline.

Each bar compares the 2011–2025 daytime average for that month against the same month in 1961–1990, measured at the same station. Months where the older record is too thin to compare are left blank.

Jan

+1.7

Feb

+0.6

Mar

+2.4

Apr

+0.4

May

+0.3

Jun

+1.0

Jul

-0.4

Aug

-0.1

Sep

+2.0

Oct

+0.3

Nov

+0.8

Dec

+3.0

September daytime highs, 2011–2025. Last recorded: 27.5°C.

Records at MARYVILLE 2E, 1894–2026
Month	Record high	Record low	Wettest day	Wettest / driest month	Years
January	20.6°C29 Jan 2015	-35.6°C12 Jan 1974	46 mm2 Jan 1999	108 mm1949 · driest 0 mm in 2025	130
February	26.7°C24 Feb 1930	-33.3°C1 Feb 1979	51 mm18 Feb 1955	107 mm1911 · driest 0 mm in 2026	130
March	33.9°C22 Mar 2026	-32.2°C5 Mar 1960	50 mm16 Mar 1919	173 mm1946 · driest 0 mm in 2025	131
April	35.6°C27 Apr 1989	-15.6°C3 Apr 1975	110 mm13 Apr 1955	228 mm1929 · driest 9 mm in 2004	131
May	43.3°C30 May 1934	-3.9°C4 May 1907	107 mm2 May 1944	337 mm2019 · driest 16 mm in 1914	130
June	40.6°C6 Jun 1933	3.3°C3 Jun 1945	161 mm29 Jun 2017	390 mm1947 · driest 15 mm in 1963	129
July	44.4°C19 Jul 1934	5.6°C5 Jul 1972	275 mm10 Jul 1922	653 mm1993 · driest 9 mm in 1936	131
August	45.0°C9 Aug 1934	3.9°C30 Aug 1915	145 mm16 Aug 2014	339 mm2014 · driest 12 mm in 1993	128
September	41.7°C3 Sep 1939	-5.6°C30 Sep 1984	170 mm22 Sep 1993	459 mm1926 · driest 6 mm in 1895	130
October	37.2°C14 Oct 1897	-16.7°C30 Oct 1925	113 mm11 Oct 1973	220 mm1941 · driest 0 mm in 1952	129
November	29.4°C4 Nov 2022	-23.9°C30 Nov 1976	63 mm5 Nov 1905	182 mm1931 · driest 0 mm in 1989	131
December	21.7°C8 Dec 1946	-33.3°C23 Dec 1989	55 mm8 Dec 1980	116 mm2007 · driest 0 mm in 2002	131

Typical days per month at MARYVILLE 2E, 1991–2020
Month	Days 25°C+	Days 30°C+	Frost nights	Heavy rain (10 mm+)	Snow days
January	0	0	29	<1	3
February	0	0	25	<1	3
March	1	0	20	2	1
April	4	<1	7	3	<1
May	13	3	<1	4	0
June	23	11	0	4	0
July	28	17	0	4	0
August	28	15	0	3	0
September	18	7	<1	3	0
October	6	1	5	3	<1
November	<1	0	18	2	<1
December	0	0	28	1	2

The best month has moved. On the 1961–1990 numbers the strongest month here was May (scoring 78); on 2011–2025 it is September (81). Both are scored the same way, from the same station — only the climate underneath changed.

How often, not how much — every day in MARYVILLE 2E’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%	13%	2%	8%	-3.4–5.0°C
February	2%	15%	3%	12%	-1.2–8.2°C
March	12%	20%	6%	19%	6.1–14.4°C
April	30%	28%	10%	33%	14.4–20.6°C
May	52%	31%	13%	39%	20.7–26.0°C
June	68%	30%	14%	36%	26.1–30.8°C
July	76%	23%	10%	23%	28.9–33.8°C
August	75%	24%	11%	27%	27.6–32.6°C
September	68%	24%	10%	25%	23.1–28.3°C
October	44%	19%	8%	19%	16.4–22.5°C
November	9%	15%	5%	10%	7.2–13.7°C
December	<1%	14%	3%	9%	-0.9–6.7°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.

1897Each stripe is one year’s mean temperature against the 110-year average. Warmest: 1934. Coolest: 1979.2019

The evidence behind this page

Nearby, measured,
and named.

Place identity: GeoNames 5055188
NOAA station: USC00235340 · MARYVILLE 2E
Station distance: 23.6 km from the place centre
Climate period: 1991–2020
Minimum month coverage: 28 usable years
Daylight: Calculated from latitude 40.20°, 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 MARYVILLE 2E is what differs

Maryville→Burlington Junction→Skidmore→Pickering→Arkoe→Quitman→

Or put two places side by side: Graham vs Maryville

Best time to visitGraham.